Hubnerite on Matrix | 18.2 grams | Ruby Mine, San Juan Co., Colorado Schorl orthopyroxene

orthopyroxene

Carrying a cloth sack

and maintain focus and clarity

This piece displays very well showing crust all over

03-00026-E - 34x28 mm / 111

Hubnerite on Matrix | 18.2 grams | Ruby Mine, San Juan Co., Colorado Schorl orthopyroxeneHubnerite is a rare manganese tungstate mineral and the manganese dominant member of the wolframite series. It typically forms dark reddish brown to nearly black blade like crystals with a submetallic to silky luster. This dense mineral is an important tungsten ore and is commonly found in high temperature hydrothermal veins, often with quartz and fluorite. Specimens from Peru and Colorado are especially well known for their sharp, aesthetic crystal