Marcasite Quartz Calcite Cluster from Russia agate 25” and weighs 1

25” and weighs 1

caused by natural mineralization that highlights the delicate structure of the plant

they are transparent and nearly colorless

12” and weighs 22

Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years

Marcasite Quartz Calcite Cluster from Russia agate 25” and weighs 1This 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 x 1 and weighs 2 oz