Many beach stones in New Zealand are dark in colour, with the main exception of white quartz. Lighter coloured stones stand out and draw the fossicker’s eye on the beach. This stone is an example of a lighter coloured one, with a white quartz vein in it. The close-ups reveal a range of light coloured minerals in it, along with some darker red patches of iron oxide.
Tumble polishing can be an inexact art. You cannot always obtain a perfect smooth polish. Close-ups often reveal tiny blemishes on a stone that are not picked up by the unaided eye. Stone #29 has a couple of tiny scratches in it, and some small bits have not taken a good polish. A return to a 400 grit tumble followed by a 600 grit stage then polish again might improve it.
Go to Stone of the Day #30. Go to the Series Index.
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