Archivo: Grossular-142244

Descripción: Grossular Locality: Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali (Locality at mindat.org) Size: 3.4 x 2.1 x 1.6 cm. From the exciting new find in Mali, three sharp yellow garnets of textbook form. 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 – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyhow, this is one of a few cherry-picked specimens that are head and shoulders above the rest, for its luster and sharpness; it consists of two intergrown crystals.
Título: Grossular-142244
Créditos: http://www.mindat.org/photo-142244.html
Autor(a): Robert M. Lavinsky
Términos de Uso: Creative Commons Attribution-Share Alike 3.0
Licencia: CC BY-SA 3.0
Enlace de Licencia: https://creativecommons.org/licenses/by-sa/3.0
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