Calcite Cassiterite Usually once a piece is

Usually once a piece is more than a few mm thick

light green color

I showed the piece to Robert Stoufer and he identified the locality for me

these specimens are the first ever Hopeites from South America

Calcite Cassiterite Usually once a piece isA beautiful crystallized mound of nearly colorless, gemmy, modified rhombohedra of Calcite from the world famous Sherman Mine in Leadville. This locality is arguably the most productive specimen producer in Leadville, despite the fact that over 10 million ounces of Silver came out in a period lasting around 11 years (started 1968 1970 and reopened 1975 1982). The Leadville mining district was the most productive silver mining region in Colorado. As of