Rocks, Minerals & Ores
Metamorphic Rocks and Minerals
Andradite garnet
Calcium iron silicateGarnet Hill, Calaveras Co. CA
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Metamorphic Rocks and Minerals
Andradite garnet is a calcium iron silicate mineral and a member of the garnet group, often found in contact metamorphic environments. It can appear in colors ranging from green (demantoid) to yellow and brown (topazolite or melanite), depending on its trace element content. Garnet Hill in Calaveras County, California, is a well-known locality for this mineral, producing sharp, lustrous crystals. Andradite’s brilliance and variety make it a favorite among collectors and gem enthusiasts alike.