3.2" Rough Green Nontronite Mineral Specimen Jove Lauriano Minas Gerais Brazil

Location: Jove Lauriano Claim, Minas Gerais, Brazil

Weight: 1.8 Ounces 

Dimensions: 3.2 Inches long, 2.2 Inches Wide, 0.9 Inches Thick 

The Item pictured is the one you will receive. 

Nontronite is a distinctive clay mineral within the smectite group, which also encompasses montmorillonite and saponite. It derives its name from Nontron, France, the location of its initial discovery. This mineral is typically present in low-grade metamorphic rocks, hydrothermal veins, and altered volcanic ash. Its notable green coloration, varying from light to deep green, is directly influenced by its iron content, making it a mineral of particular interest in mineralogical studies.