Dolomite on sulfides Richard A. Kosnar 2 cm that have a

2 cm that have a medium chocolate-brown coating of an unknown manganese oxide

sharpness and translucency/gemminess sitting on wonderfully contrasting brownish Limonite with golden metallic underlain Pyrite

is probably the most difficult to obtain

The largest Microcline crystal measures 3

especially if you’re a Quartz collector

Dolomite on sulfides Richard A. Kosnar 2 cm that have aA 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