Nail Head Calcite | Tri-State matrix It derives its name from

It derives its name from its delicate rose-pink hue

or Iron Pyrite is a pale brass-yellow iron sulfate (FeS2) mineral

Sodalite is typically a  royal blue mineral part of the feldspathoid group

The natural fossil textures are beautifully highlighted in an intricate wire wrapped bezel

Nail Head Calcite | Tri-State matrix It derives its name fromThis specimen features sharp, golden nail head calcite crystals from the historic Tri State mining district of Missouri, Kansas, and Oklahoma. The distinctive flattened crystal habit gives the appearance of nail heads, a signature form from this region. Under ultraviolet light, the calcite fluoresces, adding an extra dimension to its natural beauty. A fine example of classic Tri State mineralogy and vintage American mining heritage. This item is 4. 5