Tri-State Calcite on Sphalerite Jaw also known as fluorspar

also known as fluorspar

Technically the geological community does not define Amber as a crystal due to its creation stemming from organic matter

Stromatolites are layered colonial sedimentary structures predominantly formed by photosynthetic microorganisms

5" x 2" and weighs 3

Because the barite is more durable than the sandstone

Tri-State Calcite on Sphalerite Jaw also known as fluorsparTri state calcite is a fluorescent dark golden brown, semi translucent calcite crystal that can be found in the Tri State Mining District, located in present day SW Missouri, SE Kansas, and Northern Oklahoma. Calcite has a composition of pure calcite, (CaCO3) while Sphalerite is a zinc iron sulfide mineral (Zn,Fe)S. This item is 3" x 3. 25" and weighs 9. 15 oz.