Calcite (frosted) on Quartz
Rossie Lead Mine, St. Lawrence Co.
4.8 x 4 CM (miniature)
From the classic old locality of Rossie that was active from 1830 to 1860. A nicely frosted main crystal with a few smaller on the sides sits on a Quartz matrix. No damage, good clarity and some internal rainbows . This seems to be an untwinned crystal that was less common at Rossie. Calcites from here were used in many crystallographic illustrations and studies in the classic literature. These are rarely available now.