Marcasite Quartz Calcite Cluster from Russia Amethyst This is a rare mineral

This is a rare mineral combination that features a vibrant contrast of black

This item is 4” x 2” x 3” and weighs 30

creating a beautiful contrast of textures and tones

5“ and weighs 31

This item is 5” x 4” and weighs 16

Marcasite Quartz Calcite Cluster from Russia Amethyst This is a rare mineralThis 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 2 x 1 and weighs 1. 5 oz