Cera’s Favourite Garnet

#wkugeology #wku #homeschoolkidslearnmore #homeschool  Here my daughter is holding her favourite silicate stone, uvarovite garnets. Uvarovite garnets are the ugrandite garnet group with a chemical formula: Ca3Cr2Si3O12.  The green in this lovely garnet is caused by chromium. It is identified by it’s dodecohedran shape in groupings of small crystal, isometric crystal system and by it’s emerald green colour. The mineral is very rare and this sample at WKU is one of few they have. 

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