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C683 - Thaumasite $ 1500 N'Chwanning Mine, Kuruman, South Africa miniature - 3.4 x 3 x 1.3 cm ![]() ![]() ![]() ![]() Thaumasite is a rare mineral in the Ettringite group, the best were found at the N'Chwanning. This is a rare matrix specimen - you used to be able to find small single crystals but now even those are hard to find. Matrix specimens were always uncommon, and I have only ever had one before, a similar piece to this one that I paid a similar price to Katherine Woest about 15 years ago. Crystals are a transparent yellow and reach 5mm in diameter. White tufts of Xonotlite are dispersed between the Thaumasite crystals. ©2010-2018 Marin Mineral |