Marcasite Quartz Calcite Cluster from Russia Blue Kyanite This item is 12” x

This item is 12” x 7” and weighs 40

from the early Cambrian to the end of the Permian period

45" and weighs 2

Aragonite is a calcium carbonate mineral that commonly forms in radiating clusters

often referred to as Copal

Marcasite Quartz Calcite Cluster from Russia Blue Kyanite This item is 12” xThis 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