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This crystal is an unusual shade of green
The largest Microcline crystal measures 3
Specimen # BROOK31906
This small cabinet size specimen features excellent
Dolomite on sulfides Richard A. Kosnar This crystal is an unusualA wonderful display specimen from the famous Black Cloud mine featuring razor sharp, vitreous rhombohedra of cream colored Dolomite some of which are oriented into spherical aggregates which are sitting atop black Sphalerite, silvery Galena and golden Pyrite matrix. Excellent quality and wonderful aesthetics. The Black Cloud Mine was one of the most famous specimen producing locales in Leadville and was one of the last operating mines in Colorado when
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