Ugrandite Garnets

Sibindi, Cercle Nioro do Sahel, Kayes Region, Mali
Miniature, Larger: 3.7 x 2.8 x 2.3 cm
Start Time: 02/06/2009 8:20:00 pm (CST)
End Time: 02/26/2009 8:03:51 pm (CST)
Auction Closed

Item Description

From a knowledgeable collector: "Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I'm surprised that the body color isn't more green. I imagine that is due to the presence of color killing iron. I thought this might interest you. " Well, that is more than what we knew - back when they came out, we had heard that they were under study to see if they were demantoid var. topazalite garnet. Here are two sharp specimens - a single, and a tight cluster.

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