Porn Core Thumbnails

underthescopemineral: Aragonite, Opal (Var: Opal-AN) CaCO3, SiO2·nH2OLocality:Herdade dos Pendões Mine, São Luís, Odemira, Beja District, PortugalField of View: 5.14 mmWhite acicular aragonite crystals with blue opal-AN. Pedro Alves’ Photo