Nail Head Calcite | Tri-State Barite This rare mineral is only

This rare mineral is only found in the Mine of Marovato on the Ambolobozo Peninsula of Madagascar

5” and weighs 22

It is also widely known as "fool's gold" for its uncanny resemblance

The beautiful blue-green coloring is due to the presence of iron within the crystal structure

Nail Head Calcite | Tri-State Barite This rare mineral is onlyThis 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 3. 25