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Bariopharmacosiderite: BaFe+++4(AsO4)3(OH)5·5(H2O)
Comments: Reddish brown, crystal of barium-pharmacosiderite on matrix. Location: Clara Mine, Wolfach, Baden-Wurt., Germany. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Barnesite: Na2V6O16·3(H2O)
Comments: Bright red, acicular crystals of barnesite on matrix. Location: Cactus Rat claim, Thompson, Grand County, Utah, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Basaluminite: Al4(SO4)(OH)10·5(H2O)
Comments: Clear, radial sprays of basaluminite crystals. Location: Lavender Pit, Bisbee, Cochise County, Arizona, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bassanite: 2CaSO4·(H2O)
Comments: White, blocky bassanite crystals on matrix. Location: Taft, Kern County, California, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bassetite: Fe++(UO2)2(PO4)2·8(H2O)
Comments: Bright yellow, bladed crystals of bassetite. Location: Capoterra, near Cagliari, Sardinia, Italy. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bastnasite-(La): La(CO3)F
Comments: Orange, hexagonal crystal of bastnäsite-(La). Location: Red Cloud mines, Gallinas Mountains, Lincoln County, New Mexico, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Baumhauerite: Pb3As4S9
Comments: Opaque, lustrous, parallel crystalline baumhauerite aggregates. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bavenite: Ca4Be2Al2Si9O26(OH)2
Comments: Clear, acicular bavenite crystals. Location: Foote mine, Kings Mountain, Cleveland County, North Carolina, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bayldonite: (Cu,Zn)3Pb(AsO3OH)2(OH)2
Comments: Green, rounded, crystalline bayldonite aggregates. Location: Tsumeb mine, Tsumeb, Namibia. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Becquerelite: Ca(UO2)6O4(OH)6·8(H2O)
Comments: Yellow becquerelite crystals. Location: Shinkolobwe mine, Tantara, Shaba, Dem. Repub. Congo. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals