Calcite
Hilton deposit, Borrego Springs, San Diego County, California, USA
7.2 x 5.3 x 5.0 cm. This piece came labeled as coming from "Borrego" in Riverside County, California, but the only calcites from any locality containing "Borrego" is the Hilton deposit in Borrego Springs, San Diego County. With that said, I'm quite confident that this piece is from the Hilton Deposit. It features sharp, well-formed, translucent, ...
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