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September 12, 2016

Monday Geology Picture: Pretty Purple Stichtite

For this week’s picture here’s an example of one of my favorite minerals: stichtite, a lovely purple-colored chromium and magnesium rich carbonate. I saw this particular sample of stichtite for sale at a rock shop. Stichtite comes in a range of purple shades, from a pale pinkish purple to a rich, bright purple. I really like the lilac shade of this particular sample. The R3500 (about $250 US) cost for this sample was …

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