Marcasite Quartz Calcite Cluster from Russia Blue Kyanite 45" and weighs 2

45" and weighs 2

This item is 3” x 3” and weighs 4

25" and weighs 18

these marine invertebrates had chambered shells for buoyancy

This specimen has been photographed with mid wave black light

Marcasite Quartz Calcite Cluster from Russia Blue Kyanite 45" and weighs 2This beautiful cluster from Russia features shimmering marcasite, quartz, and calcite that fluoresces under UV light. Marcasite is made of iron sulfide, with the same chemical formula as pyrite, though it forms in a different crystal structure. It typically appears metallic and pale bronze with a bright reflective luster. This item is 1. 5 x 1. 5 and weighs 1. 95 oz