3.1" Rough Green Nontronite Mineral Specimen Jove Lauriano Minas Gerais Brazil Carpolithus a gemstone sphere from Peru

a gemstone sphere from Peru

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

the Dromaeosaurus resembles the tyrannosaurs

and metallic phases reveal the complex processes that shaped this extraterrestrial relic

and striking crest

3.1" Rough Green Nontronite Mineral Specimen Jove Lauriano Minas Gerais Brazil Carpolithus a gemstone sphere from PeruLocation: 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