3.1" Rough Green Nontronite Mineral Specimen Jove Lauriano Minas Gerais Brazil Carpolithus These processes often result in

These processes often result in impressive crystal clusters and geodes lined with sharp

surviving until the end of the last glacial period

Its robust body and long

and striking crest

3.1" Rough Green Nontronite Mineral Specimen Jove Lauriano Minas Gerais Brazil Carpolithus These processes often result inLocation: Jove Lauriano Claim, Minas Gerais, Brazil Weight: 4 Ounces Dimensions: 3. 1 Inches long, 2. 1 Inches Wide, 1. 7 Inches Thick The Item pictured is the one you will receive. Nontronite is a green clay mineral belonging to the smectite group, alongside montmorillonite and saponite. First discovered in the town of Nontron, France, this mineral is typically found in low grade metamorphic rocks, hydrothermal deposits, and weathered volcanic ash