Bertrandite, Kazakhstan, Museum-Sized Specimen cf-type-fluorite-with-calcite this Pyrite has a brown

this Pyrite has a brown shade and rough texture which contrasts with the glassy luster of the Ludlamite

Weight: 653 grams

which sits atop a light gray

Cubic crystals of purple Fluorite sit atop a bed of white Quartz

Bertrandite, Kazakhstan, Museum-Sized Specimen cf-type-fluorite-with-calcite this Pyrite has a brownBertrandite Kara Oba, Kazakhstan Approx. Dimensions: 9 in x 6. 75 in x 2 in Approx. Weight: 2300 grams Pale white crystals of Bertrandite fan out in clusters between well formed Quartz crystals and Pyrite, a rare mineral on gorgeous display with more common yet equally beautiful minerals. A true gem, this large specimen hails from Kazakhstan.