Calcite, Fluorite, Willemite; Black Rock Mine, Arizona

Arizona has a lot of great mines and stunning material. Here's a nice one from the the Black Rock Mine in Yuma County, Arizona. Great patterns of calcite and willemite, with fluorite mixed in. Shown in SW, MW, LW and natural. Should have shot it in SW + LW, but alas, no. About 4 inches by 3.

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