A Blog About Stone Gathering, Tumbling and Polishing, and Rocks and Landscapes, from New Zealand – With Musical Interludes (john.tumblestone@gmail.com)
Early 2024 Fossicking Trip – Part 6, A Red, a Green and a Pink, Gemstone Beach, Wednesday 21 February
Part 6
Part 7
Part 8
Part 9
Part 10
Today on Gemstone Beach, during my usual fossick (three hours long, from the carpark to the Waimeamea River and back), I started off in light rain but finished in sunshine. It was 12 degrees when I started off at 11am, a bit warmer when I finished. At times I had a look for stones at the back of the beach, near the cliffs. However, there had been some cliff crumbling recently and I took care to check the steep slope above me (there is a sign in the carpark warning about the cliffs). Halfway through my fossick, I had a chat to a man from Winton who had not visited the beach before.
Rain clouds above Gemstone Beach in front of the carpark today. Close to high tide.
Large sections of this strip of the coast have lots of stones to walk over.
The crumbling cliffs at the back of the beach.
Part of a crumbling cliff.
I saw more hydrogrossular garnets on the beach than yesterday, though no large ones. I came across lots of trace fossil stones. I also found quite a few colourful and patterned stones, good for tumble polishing, including a bright red jasper (or is it a quartzite??), a dark green quartzite and a “pinkie” (probably thulite).
This bright red jasper (brecciated, with quartz) stood out on the beach. Other red jaspers there tend to be darker.
Gorgeous green quartzite, with translucent quartz veins.
Pink stone, probably thulite.
Below are three of the trace fossil argillite stones I found today. In the first two, the trace is darker than the host rock, which is unusual. In the third one, the traces are lighter and often quite faint.
Trace fossil stone.
Trace fossil stone.
The trace fossils in this stone are often quite faint.
The next stone is a very unusual one, with its two sides being quite different and yet both being fascinating.
One side of this stone has these tiny light wavy lines.
The other side contains an interesting pattern and some brecciated inclusions.
Eight of the other stones I collected today:
The first stone I found today, on the edge of the Taunoa Stream, not far from the carpark.
Tiny white crystals.
Light coloured spotted argillite is my guess for this one.
Iron oxide and quartz??
I like the subtle distribution of dark red and white.
This stone is brighter in colour in person. Maybe a quartzite??
Interesting “spots”.
A variety of quartz/quartzite?? I appreciate the tiny detailed pattern.
The green mineral in this stone is epidote, I think.
Perhaps the nicest of the hydrogrossular garnets I found today.
Some of the stones I left on the beach:
The TumbleStoneTwo home page for Gemstone Beach is here.
Gemstone Beach and the Waimeamea River. Source: Mapcarta.com.
Gemstone Beach. Source: Google Maps.
Waimeamea River lagoon. Source: Mapcarta.com.
The next Part of this Series features a large pink thulite and a small red poppy jasper – see here. The Series Index is here.
Retired Academic, male, living in the New Zealand countryside near Whanganui with his wife as well as Jasper the dog, Fluffy the cat, Dancer and Penny, the horses, and a shed half-full of stones. Email john.tumblestone@gmail.com.
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7 thoughts on “Early 2024 Fossicking Trip – Part 6, A Red, a Green and a Pink, Gemstone Beach, Wednesday 21 February”
Hi Anna. In a three hour fossick, I can sometimes find only two or three small ones that are not particularly beautiful. However, on other days, I can find four or five very nice ones along with a dozen others. It is not easy to recognise them – it takes a person, under guidance, at least two or three fossicks to learn what they are like. They tend to feel waxy, but can often look like quartz or even a shiny argillite in certain light. On Gemstone Beach itself, in front of the carpark, they don’t often appear (although they can) – you need to move around 300 to 400 metres past the Taunoa Stream (see here for where the Taunoa Stream is https://tumblestoneblog.wordpress.com/2023/07/28/ts2-gemstone-beach-and-its-stones-an-introduction-for-the-passing-motorist-part-two-main-features-of-the-beach/).
I love the photo “some of the stones I left on the beach” – it made me have a little giggle to myself!
How common is it to find hydrogrossular garnet on Gemstone Beach? The one pictured above is a beaut.
Hi Anna. In a three hour fossick, I can sometimes find only two or three small ones that are not particularly beautiful. However, on other days, I can find four or five very nice ones along with a dozen others. It is not easy to recognise them – it takes a person, under guidance, at least two or three fossicks to learn what they are like. They tend to feel waxy, but can often look like quartz or even a shiny argillite in certain light. On Gemstone Beach itself, in front of the carpark, they don’t often appear (although they can) – you need to move around 300 to 400 metres past the Taunoa Stream (see here for where the Taunoa Stream is https://tumblestoneblog.wordpress.com/2023/07/28/ts2-gemstone-beach-and-its-stones-an-introduction-for-the-passing-motorist-part-two-main-features-of-the-beach/).
My eye is most definitely untrained but I’d love to find one. In their natural state straight off the beach they have a real allure, I think.