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Specimen # BROOK31904
jet-black twinned crystal of Ferberite (twinned along the a{100} face)
This specimen is not only an impressive
The Quartz crystals have a very soft "smoky" hue
but it is contacted a little on the back
Calcite Bolivia metallic Specimen # BROOK31904A beautiful crystallized plate 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
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