Cavansite
Municipal quarry, Morro Reuter, Rio Grande do Sul, Brazil
Cavansite on basaltic rock.
Prefeitura quarry, Serra Geral Formation, Paraná Province, Morro Reuter, Rio Grande do Sul, Brazil.
Crystalline System: Orthorhombic.
Genesis: vesicular zone of basalts, tuffs and volcanic breccias, next to calcite veins (STAPLES, L. W.; EVANS Jr. H. T.; LINDSAY, J. R. Cavansite and pentagonite, new dimorphous ...