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Oursinite: (Co,Mg)(H3O)2[(UO2)SiO4]2·3(H2O)
Comments: Yellow velvety acicular sprays of oursinite crystals on matrix. Location: Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaire). Scale: Picture Size 8 x 6 mm. © Sandro Maggia/Minernet.it
Oyelite: Ca10B2Si8O29·12(H2O)
Comments: Tufts of white acicular millimetric oyelite crystals on matrix. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 2 cm. © Sandro Maggia/Minernet.it
Paravauxite: Fe++Al2(PO4)2(OH)2·8(H2O)
Comments: Light-green, elongated paravauxite crystals. Location: Siglo XX mine, Llallagua, Bolivia. Scale: Crystal size 1 cm. © Sandro Maggia/Minernet.it
Reddingite: Mn++3(PO4)2·3(H2O)
Comments: Brown crystals of reddingite on matrix. Location: Boa Vista creek, Minas Gerais, Brazil. Scale: Crystal size 1 mm. © Sandro Maggia/Minernet.it
Sampleite: NaCaCu5(PO4)4Cl·5(H2O)
Comments: Sky blue lamellar crystals of sampleite up to 2 mm. scattered on matrix. Location: Chuquicamata, Antofagasta, Chile. Scale: Picture size 2 cm. © Sandro Maggia/Minernet.it
Shigaite: Mn++7Al4(SO4)2(OH)22·8(H2O)
Comments: Hexagonal aggregate of orange platy shigaite crystals on a jpale pink rhodocrosite matrix. Location: N'Chwaning mine. South Africa. Scale: Crystal size 3 mm. © Sandro Maggia/Minernet.it
Skutterudite: (Co,Ni)As3-x
Comments: Bright, untarnished, metallic crystals of skutterudite up to 1 cm. Location: Bou Azzer, Morocco. Scale: Picture size 3 cm. © Sandro Maggia/Minernet.it
Talmessite: Ca2Mg(AsO4)2·2(H2O)
Comments: Vivid pink-colored talmessite crystalline aggregates scattered on matrix. Location: Bou Azzer, Morocco. Scale: Picture size 2 cm. © Sandro Maggia/Minernet.it
Tuperssuatsiaite: Na(Fe+++,Mn)3[Si8O20](OH)2·n(H2O)
Comments: Rich, brown tufts up to 0,4 cm of acicular tuperssuatsiaite crystals on a phonolite matrix. Location: Aris Phonolite, Namibia. Scale: Picture size 4 cm. © Sandro Maggia/Minernet.it
Vladimirite: Ca5(AsO3OH)2(AsO4)2·5(H2O)
Comments: Sprays of platy, elongated, white tiny crystals of vladimirite, associated with minor aragonite. Location: Irhtem, Morocco. Scale: Picture size 3 cm. © Sandro Maggia/Minernet.it