“Well that was hard!” 36 Milestones for a Completed Thesis – Part Three: Stones 23 to 36 (Slope Point)

Milestones mark progress along a journey. These 36 tumble-polished milestones mark the final completion by Lynley Uerata of her doctoral degree journey. Her doctoral thesis is entitled “Insecure, Unpredictable, Hoping to Survive: Four Cases of Māori People Living Precariously in Hamilton, Aotearoa New Zealand” (you can view it here).  I am giving Lynley one polished Tumblestone as a milestone for each year of her life so far. The stones come from four different beaches. Milestones #1 to #10 are from Timaru South and Kakanui – see Part One in this Series. Milestones #11 to #22 are from Gemstone Beach and feature in Part Two. This Post features 14 milestones from Slope Point beaches.

Slope Point is the southernmost part of the South Island, located about 70 kilometres east of Invercargill. Tourists are directed to a carpark from where they can walk across a windswept paddock to the top of high rocky cliffs looking out over a wild sea. It is there that the Slope Point sign is located (see photo above, top left). Fossickers for beach stones have to drive a couple of kilometres further along a narrow gravel road before crossing paddocks down awkward slopes to reach their goal. NOTE – OCTOBER 2023 – Landowners are now refusing access to this beach, so please do not visit there without permission. See here for an account of a fossick at one Slope Point beach, and here for an account of another beach. Many of the Slope Point stones have arisen from Jurassic Era volcanic activity and debris flows, which also produced the petrified trees of nearby Curio Bay (see this brief introduction to the petrified forest and Mike Pole’s interesting account of Curio Bay). Slope Point stones are quite different from the stones found on the other three South Island beaches featured in this Series of Posts. The following 14 Milestones illustrate the diversity and colourful patterns of Slope Point stones.

The first two milestones from Slope Point were also Stones of the Day in the TumbleStone Blog Series for January 2022, so information about them can be found there. Milestone #23 is a gorgeous light-coloured petrified wood stone with agate veins. It was January 2022 Stone of the Day #10. As Wikipedia explains: “Petrified wood forms when woody stems of plants [or trees] are buried in wet sediments saturated with dissolved minerals. The lack of oxygen slows decay of the wood, allowing minerals to replace cell walls and to fill void spaces in the wood.”

Milestone #24 is probably one of Slope Point’s colourful rhyolites, and was January 2022 Stone of the Day #12.

Milestone #25 is a highly polished white stone with lots of tiny features. It could be something like fossilised sea floor, with tiny fossils in it, but I can’t say for sure.

Maybe also a rhyolite, Milestone #26 is a dark stone with interesting light-coloured veins breaking the surface.

From time to time, I have found orange and black stones with light-coloured crystals or maybe fossils in them. They are a bit of a mystery. Milestone #27 is one of these stones. It has polished well and there are interesting shapes, patterns and lines in it.

Two quite different stones with different kinds of light-coloured spots follow. A fascinating and complex stone is Milestone #28. When viewed in close-up, the white spots in it look like flakes of ash with tiny cracks in them.

The spots in Milestone #29 look like tiny crystals scattered throughout the stone.

Milestone #30 is probably a flow-banded rhyolite. Its dark base and occasional white patches make it an attractive stone. It has polished well, with only one small rough patch on its “underside”.

The next two are the smallest of the Slope Point stones. Milestone #31 is three centimetres long and two-and-a-half centimetres wide. It has a bleached appearance but contains tiny white and orange shapes and tinier black dots, perhaps different types of crystals.

Milestone #32 is three centimetres long but only one-and-a-half centimetres wide. It is likely to be a rhyolite stone with fine bands of what could be silica.

Milestone #33 appears to be a kind of petrified sediment, with alternating layers of dark and light gray.

The next two milestones are different kinds of breccia, stones with small sharp-angled fragments in a fine matrix (see the comments on Milestone #11 for some information on brecciated stones). Milestone #34 is eye-catching, probably a volcanic breccia. There is an amazing diversity of fragments, some with their own internal patterned structure. It can often be difficult to get a good smooth surface on brecciated stones as different fragments can be softer or harder, and some may not take a polish. Milestone #34 has polished well, though Milestone #35 has a couple of small rough areas.

Milestone #35 is a less colourful breccia, being predominantly gray, but some of its fragments are very similar to those in Milestone #34.

The final stone, Milestone #36, is light-coloured, a complex mix of creamy-white and light brown.

One of the main parallels between Lynley’s doctoral research and these 36 milestones is suggested by the close-up photos of the stones. The close-up photos reveal how the stones are constructed, showing the individual constituents that make up the lines and patterns and shapes. The fossicker is drawn to the overall colour of a stone on the beach, but appreciation and understanding are deepened when close-up examination occurs. It is the same when trying to understand a social phenomenon like “precarity” – it tends to be the overall statistics that attract attention, but understanding is sharpened and deepened by taking a closer look at the experiences of individuals. Lynley’s decision to spend a lot of time getting to know four people in the context of their everyday lives meant that her research took a long time but it also meant that she gained a deeper understanding. Her aim “to make their voices heard by representing their own experiences in their own words” (thesis, page 359), based on transcriptions of recorded interviews and fieldnotes, also meant that the writing of the thesis took a long time, but it was the right choice, the right path to take.

It took a few weeks to tumble-polish each these milestones, but the sea tumbled them for thousands of years before I found them on the beach. As Lynley states in the Preface to her thesis, it was the “combination of my cultural, educational, and employment history” that led to her doctoral research (page v). These 36 milestones reflect the length of Lynley’s life history, marking the years that led to this point of personal achievement. Yes, it was hard, but it was worth it.

Six Newly Polished Stones from Kakanui: Close-Up Flaws

Yesterday a 3lb barrel of stones from Kakanui’s Seadown Beach finished the tumbling process. This beach lies just two kilometres north of the town of Kakanui in North Otago. An introduction to the beach is provided in TumbleStone2. These 61 stones were previously tumbled in 400 silicon carbide grit, then some spent time tumbling in the finer 600 grit. I have found that jaspers and stones that consist of bands and patches will take a polish better if they have the extra tumble in the finer grit. The polish tumble lasted for just under 12 days, followed by a two day burnishing tumble in borax.

In general, close-up photos of polished stones can often reveal wondrous shapes and patterns and structures, turning a sometimes ordinary stone into an aesthetic treasure. But sometimes the close-ups can also reveal flaws that are not detected by the naked eye. I picked out six of the polished Kakanui stones to look at more closely in this Post. The ones chosen had caught my eye, and seemed to have polished well. However, it turns out to be a challenge to achieve a completely smooth polished stone. Closer examination reveals tiny rough patches or holes in all of them. Sometimes this is because of the fractured nature of the stone and my reluctance to reduce its size too much. Sometimes it is because I have not picked up the rough patches and holes when deciding to move the stone to the final polishing stage.

The first stone (photos below) caught my eye because of the white quartz segment within it which shows on both sides. It is the second largest of the six stones, four centimetres high and two-and-a-half centimetres at its widest. It is probably a quartzite. I have been following it eagerly through the various stages of tumble-polishing. It is perhaps the most smooth of the six featured in this Post, but the close-ups still reveal an occasional tiny scratch (see the first of the close-ups of the B Side).

The next stone is very dark in colour though it comes alive in bright sunlight – then it is apparent that there is silvery-grey hematite in it. The photos below make it appear less dark than it is in person. Maybe this is a jasper stone, perhaps related to the limonite prase that can be found along this part of the North Otago coast. I thought this stone was very smooth but it turns out to have a shallow hole in the middle of the B Side. It’s tempting to return the stone to a grit tumble and remove it, but that then reduces the stone’s size. It is currently three centimetres long and two centimetres wide.

The third stone is a similar size to the previous one, and is probably a jasper. I find this light-coloured form of jasper to be very appealing (see here for a Post with other examples of light-coloured jaspers from Kakanui). But, like many jaspers, it is difficult to obtain a smooth and shiny outcome. This stone came out of the tumbler looking and feeling very good, with just a little roughness associated with the dark vein on the A Side. However, the photos below show a number of tiny rough areas in different parts of the stone.

Some stones hide their tiny rough areas along their edges. “imperfections” The fourth stone is a bright and interesting one that has generally polished well. However, at the bottom of the close-up of Side B, a line of roughness is apparent. It is difficult to eliminate such roughness as further tumbling in grit tends to move such an edge back rather than cause it to disappear. In many ways it does not detract from the two main faces of the stone, but it is annoying when felt as a finger moves over the stone. This stone is approximately the same size as the second, third and fifth stones.

The fifth stone is of a slightly different shape, more elongated, and is likely to be a quartzite. It has patches and veins of a light brown, and a tiny green vein on Side B, providing visual interest. Once again, the stone appears smooth and polished but the close-ups reveal tiny “imperfections” not apparent to the naked eye.

The sixth and final stone is the largest, five centimetres high and four centimetres at its widest. It is a yellow quartzite, a fairly common stone on Kakanui’s Seadown Beach (see this Post for other examples). These quartzites are often fairly smooth already when found on the beach, but sometimes, after some tumbling, they can be found on close inspection to have tiny holes in them. Further tumbling will make the holes disappear but only at the cost of reducing the size of the stone. The close-up photos of the sixth stone reveal not only the tiny crystals in it but also a small number of tiny holes which are actually very difficult to discern with the naked eye.

In general, the flaws detected in the close-ups of these stones do not detract from an experience of them as interesting and smooth stones. But I feel the need to conduct my inspections between tumbling stages more carefully to try to improve the finished result. There are always exceptions of course, where a really interesting stone has a hole or crack too large to eliminate, and when I need to decide to live with less than a smooth polish in order to enjoy the stone.

“Well that was hard!” 36 Milestones for a Completed Thesis – Part Two: Stones 11 to 22 (Gemstone Beach)

These 36 tumble-polished stones mark the completion by Lynley Uerata of her doctoral degree. Her doctoral thesis is entitled “Insecure, Unpredictable, Hoping to Survive: Four Cases of Māori People Living Precariously in Hamilton, Aotearoa New Zealand” (you can view it here).  A doctoral thesis is a report on a research project that has taken a number of years and it is often a significant life achievement. So I am giving Lynley one polished Tumblestone as a milestone for each year of her life so far. These 36 stones, from four different beaches, will be presented in three Posts. The first Post in this Series, dealing with 10 stones from Timaru South and Kakanui, is here. This Post features the 12 stones from Gemstone Beach. Each stone provides some metaphorical parallel to the process of thesis research.

Gemstone Beach, at Orepuki on Foveaux Strait, is probably the most well-known stone fossicking beach in the lower South Island. It lies on the coast of Te Waewae Bay, to the east of the Waiau River mouth. The Waiau River brought down many rocks and stones from further north, including the eastern Fiordland mountains. TumbleStone2 provides a detailed introduction to Gemstone Beach, which is my main fossicking beach.

Milestone #11 is a brecciated stone, with green fragments cemented in a fine red matrix. This mix of colours is unusual in my experience. The stone was January 2022 Stone of the Day #15. See this Post for some information on breccia and Gemstone Beach. Lynley’s thesis also contains a number of unusual mixes, such as its concerns with both large-scale processes and their impact on the lives of individuals.

Another January 2022 Stone of the Day is Milestone #12. It was Stone of the Day #19 and is a tiny jasper, the smallest of the 36 Milestones (see here for a Post with some detailed information on jasper). Though this stone is small, careful examination reveals interesting and intricate details. As Lynley’s thesis shows, the smallest and seemingly most innocuous of people still have much to teach others when we take a careful look at their lives.

It is interesting to compare Milestone #13 (photos immediately below) with Milestone #20 (photos further on). Both are black and white stones but their characters are quite different. Whereas Milestone #20 has well-defined white shapes in a black matrix, Milestone #13 has more cloudy white shapes that merge into the black. In many ways, this makes for a more interesting stone, drawing the eye to explore its nuances. A thesis can treat life as black and white, with clearly defined boundaries or where the boundaries are fuzzy.

Milestone #14 is a trace fossil stone, known at Gemstone Beach as a fossil worm cast stone. It is an argillite stone. Some animal once burrowed through mud or moved along the mud’s surface at the bottom of the ocean and left behind these traces. See here for some information on these stones. A thesis is like a trace fossil, a picture frozen in time of a society or one of its members. Here is what life was like at this particular point in time.

Gemstone Beach is known for its hydrogrossular garnets. Milestone #15 is a gorgeous brown hydrogrossular. The first ever identification of hydrogrossular garnet in the world was in 1943 by New Zealander Colin Hutton, from stones he found in Nelson. The term “grossular” comes from the Latin word for gooseberry, referring to the light-green colour of some hydrogrossular garnets. However, other minerals get mixed in, and white and brown are two other common colours. The browns especially usually have a very waxy feel when found. Milestone #15 has been tumble-polished so it now lacks that waxy character. See here for information on hydrogrossular garnets from TumbleStone2.

One of the larger stones, Milestone #16 was picked up by me because it reminded me of the appearance of marble. Its cloudy nature and its thin veins are reminiscent of marble stone. It is probably most likely a form of quartz, with a nice white colour on one side, a creamier hue on the other. This Post describes this type of stone and its variations.

Milestone #17 is a kind of banded argillite, and it may have a trace fossil at the top of its “other” side (see below). Argillite is a hardened, slightly recrystalised, mudstone, mainly grey through to black in colour but it can also be green and red (arising from the presence of iron). Green is the most common colour for argillite on Gemstone Beach, with some stones having trace fossil burrows and trails in them. They often polish very well. A thesis always contains different layers, which actually guide the writing – the chapters provide the most basic layer, and each chapter has an opening and a concluding layer. In between are layers which provide information arranged within the line of argument of the chapter.

Milestone #18 is a light-coloured stone with many fine silica veins running through it. It is probably a quartzite.  Quartzite is  a very hard durable metamorphic rock composed almost entirely of quartz. It forms when a quartz-rich sandstone is altered by the heat, pressure, and chemical activity of metamorphism. These conditions recrystallize the sand grains and the silica cement that binds them together. The result is a network of interlocking quartz grains of incredible strength. Impurities in quartzite can cause it to be yellow, orange, brown, green, or blue. Often it tumble-polishes very well. Milestone #18 is one of the medium-sized stones of the 36 I am giving to Lynley.

A smaller stone is Milestone #19, coloured purple and pink. When held up to the sunlight, tiny sparkles appear, probably the light reflecting off very small crystals of quartz. This helps to contribute to its delicate character, along with the fine strands of red within the pink. A good thesis pays attention to details, getting them right and getting them in order.

It is difficult to state with certainty what kind of stone is Milestone #20. It could be a brecciated stone, like Milestone #11. Or it could be a porphyry, a stone of volcanic origin, with crystals within it which have grown as the hot liquid rock cooled. However, many porhyries don’t have crystals as clearly defined as in this stone. Some amygdaloidal stones also look similar, where tiny holes in a volcanic rock has been infilled with minerals precipitating out of water which has flowed through it. (This variety of stones on Gemstone Beach is shown towards the end of this Post). My guess is that Milestone #20 is a porphyry, but I remain uncertain. It is not always easy to identify a stone found on the beach, even after extensive research.

Milestone #21 is a thin stone, almost boomerang shape. It is one of those stones that looks much better in person than in the photos, as the photos reveal tiny holes on its the surface. In person, the shapes within it are clearer and much more interesting.

Finally, Milestone #22 is probably a quartzite, like Milestone #18. Its mottled character does a much better job (compared to Milestone #21) of disguising its polishing imperfections in the close-up photos. There is an interesting complexity there, just like a good doctoral thesis!

Part Three in this Series looks at the remaining 14 milestones, all from Slope Point.

“Well that was hard!” 36 Milestones for a Completed Thesis – Part One: Stones 1 to 10 (Timaru & Kakanui)

At the end of June, Lynley Uerata completed her doctoral degree with the successful submission of her thesis, “Insecure, Unpredictable, Hoping to Survive: Four Cases of Māori People Living Precariously in Hamilton, Aotearoa New Zealand” (you can view it here). This followed a rigorous examination process taking a number of months. I first taught Lynley when she was an undergraduate student at the University of Waikato. She then took a graduate social research methods class with me, before asking me to be the supervisor of her Master’s thesis. I then acted as an informal advisor for her doctoral thesis, offering advice, discussing issues, and providing feedback on drafts of chapters. Throughout the time Lynley worked on her doctoral thesis, I also provided polished stones as “milestones” to recognise progress and provide encouragement – see “Twenty Thesis Milestones for Lynley“.

Milestones lie ahead of you on your journey somewhere, marking the passing distance, providing feedback that your end goal is getting closer. When reaching a milestone, finishing a phase of research or a draft of a chapter, then a sense of achievement and a feeling of satisfaction are gained. All milestones are also “stepping stones”, places to stand from which to launch forward. The final milestone on a journey is also the first stepping stone of the next journey. Of course, stepping stones also include the people a student mentions in their “Acknowledgements” and “References” – family and friends as well as supervisors and mentors and previous researchers (see Lynley’s “Acknowledgements” and “Preface” below, plus her thesis “Contents”).

The various senses of stepping stones are well captured by the Scottish folk singer Dougie MacLean in his song, “Stepping Stones”, where he states “We do not stand alone”, even when we are “out in the deep unknown”. I know Lynley prefers more lively music, but I also know she will appreciate a number of aspects of these lyrics (full lyrics can be found at the end of this Post).

As Lynley explains in her “Abstract” (Summary), the topic of her thesis focused on the struggle that a number of people face in New Zealand to live a stable and fruitful life. “A precarious way of life is characterised by interacting forms of precarity which embed insecurity, instability, and unpredictability in the everyday lives of real people. An account of the Māori experience of precarity since the pre-colonial era to the present-day is presented.” A doctoral thesis is a detailed and extensive report on a significant research project carried out over a number of years by the student. It is written for an academic audience (especially the examiners) and the use of theoretical and technical terminology often makes it hard to understand for many outside of the university setting. It is a major achievement and, as Lynley stated at the beginning of her “Acknowledgements”, it is very definitely “hard work”.

Most social science doctoral theses probably take about four to five years to complete, some much longer – Lynley’s took about twice that and my own took three times that (I tend to be a perfectionist and was also employed fulltime for much of it). One of the reasons for the length of time for Lynley’s doctoral work was the “engaged methodology” she chose. When studying poverty, you could restrict yourself to statistics. However, a better understanding of people and the complexity of their lives results when you engage with them over an extended period of time. Lynley spent time talking with a number of Māori people, visiting each of them a number of times and also interacting with them in different ways. This meant she could study only four people and their families, but she studied them in depth. A separate chapter is devoted to each of them, as “case studies” of individual experiences in the context of culture and economy and the highs and lows of daily life (below are the first pages of two of the case study chapters).

A doctoral thesis like this is a life achievement. It is the culmination of a lifetime’s interests, learning and effort. It expresses the student’s personality, skills and passions. So I am giving Lynley one polished Tumblestone as a milestone for each year of her life so far. These 36 stones, indigenous to Aotearoa/New Zealand, will be presented in three Posts. This Post features three stones from Timaru South and seven stones from Kakanui’s Seadown Beach. The second Post features 12 stones from Gemstone Beach and the third Post presents 14 stones from Slope Point. I had initially asked Lynley to choose stones she liked from the January 2022 Stone of the Day Series (see here) and she picked Stones 10, 12, 15, 19 and 22. I later decided to supplement these with additional polished stones.

THREE TIMARU STONES

Milestones one to three come off a beach just south of Timaru in South Canterbury (see Timaru South in TumbleStone2). Milestone #1 was January 2022 Stone of the Day #22, “a Timaru quartzite with windows”. A good social science thesis like Lynley’s provides a window into the lives of the people she studied. Milestone #1 is also unusual in that it has two contrastingly coloured sides.

The second Timaru stone, Milestone #2, maybe another quartzite, looks much better in person than in its photos. The photos fail to represent well its high polish, highlighting instead some of its tiny holes and rough patches. Or, at least, that’s what “I” see. The tumble polisher is like the thesis writer – we are aware of the imperfections of what we produce, and sometimes, if we are lucky, the “examiners” may pay more attention to the strong points, the shiny bits, not the rough bits.

Milestone #3 is the smallest of the three Timaru stones. It has a distinctive silica band running diagonally through opaque yellow material – that and the other silica throughout the stone is a bit like the insights that hold together and illuminate the detailed arguments of a thesis.

SEVEN KAKANUI STONES

The next seven milestones were found on a beach not far from the small town of Kakanui in North Otago (see Kakanui’s Seadown Beach in TumbleStone2). Milestone #4 is a nicely polished quartzite of an unusual green hue, an interesting mix of dark and light variations:

Milestone #5 is a quartz-type stone of light caramel colour with interestingly shaped light-coloured bands and patches:

One of the more complex Kakanui stones is Milestone #6. I didn’t realise its beauty until I was working to produce the close-ups. These revealed a rich tapestry of colours and patterns, some suggestive of three-dimensional clouds. A good thesis, like Lynley’s, also has a complex and multi-layered character. This is one side of the stone:

This is the other side of the stone:

Milestone #7 is the largest of the 36 stones I am sending to Lynley, five centimetres long and 80 grams in weight. It has alternating bands of clear silica with a clay-like material, plus some thin dark lines. On one side, the first shown below, the largest clay-like band in noticeably indented, while the surface of the other side is much smoother. This stone stood out clearly when I found it, wet on the beach, the clay-like bands glistening brightly.

Sometimes stones have fossils in them, preserved remnants of creatures. What was once living is frozen in time, just like a thesis does in relation to what it describes and explains. Milestone #8 is an example of a type of stone I sometimes find on Kakanui’s Seadown Beach – it has been referred to as fossilised ancient seafloor (see “A Small Kakanui Fossil Seafloor Stone). These stones often contain lots of tiny fossils, especially shells that once accumulated on the seabed. The close-up photos are especially good at revealing the complexity and variety in the stone.

The two final Kakanui milestones are both quartzites, but of different character and colour (see this Post, the entry for Wednesday 26 May 2021, for an account of some of the colour variation in Kakanui quartzites). Milestone #9 has the clouds of colour often seen in such stones, but instead of the more common yellow (see here), they are a brownish-red.

The colour of the Milestone #10 quartzite is mainly a light cream, and its clouds are more compact. There are also bands of clear silica within. Both Milestones #9 and #10 have the tiny clear crystals typical of these quartzites, which become especially apparent in the close-ups.

The next Post in this Series presents Milestones #11 to #22, a dozen tumble-polished stones from Gemstone Beach.

***** *****

“Stepping Stones” by Dougie MacLean

And so much time has gone since we worked out in these open fields
With the hopes of generations pulled around us and a strength revealed
And so much has been done since we ran around the Snaigow Wood
Never knowing where our gentle lights might lead us, or if indeed they could

And we do not stand alone
I know we stand with all the others
Out in the deep unknown
I know we stand upon their stepping stones

Sure and simple souls guarded round us as we worldly grew
With nothing greater than what working days might show them, they gave us all they knew
And though their dreams were small, oh their true and rural hearts were strong
With an honest smile that burns from somewhere distant, they helped us all along

And we do not stand alone
I know we stand with all the others
Out in the deep unknown
I know we stand upon their stepping stones

And in these silent hours when reflection lays our journey down
And we think on all departed conversations, it’s such an earthy sound
And so much time has gone since we worked out in these open fields
With the hopes of generations pulled around us and a strength revealed

We do not stand alone
I know we stand with all the others
Out in the deep unknown…
I know we stand upon their stepping stones

Main Source = http://www.dougiemaclean.com/index.php/s/85-stepping-stones

A Small Kakanui Fossil Seafloor Stone

Yesterday I found this stone in a 3lb barrel of Kakanui stones that had been tumbling for 11 days in 400 silicon carbide grit. I was sorting through the stones, working out which to tumble again in 400 grit, which to send to a tumble in 600 grit (all the jaspers go to this stage), and which ccould go straight to the polish stage. This stone stood out from all the others because it was shiny and felt waxy – that’s when I realised it is a fossilised seafloor stone and that further tumbling would not improve it. This type of stone often includes many tiny features that can be seen only in close-up. This is one side of the stone:

This is the other side of the stone:

I found this stone on Kakanui’s Seadown Beach in March 2022 – see here for more information on this North Otago beach. The photos I took of the stone that day were partially marred by a drop of water on the camera lens, but it is still apparent that the wearing away of the surface by the tumbling has changed it quite a bit:

Other fossilised seafloor stones found on Seadown Beach this year include these six:

Two other TumbleStone Blog Posts on this type of stone can be found here- “Kakanui Fossilised Sea Floor Stones – Only 400 Grit Tumble” and “January 2022, Stone of the Day #13 – Kakanui Fossilised Sea Floor”.

[Apologies for the lack of Posts over the last month but I have been distracted by dental issues.]