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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
Batiferrite: Ba(Ti2Fe+++8Fe++2)O19
Comments: Gray hexagonal crystal of batiferrite on matrix. Location: Graulai (Grauley), near Hillesheim, Eifel Mts, Rhineland-Palatinate, Germany. Scale: Picture size 1.2 mm. © Thomas Witzke / Abraxas-Verlag
Batisite: BaNaNaTi2O2[Si4O12]
Comments: Vitreous, translucent, brownish orange crystals of batisite. Location: Malyi Murun, Siberia, Russia. Scale: crystals up to 4 to 7 mm. © John Veevaert
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
Comments: Black, rounded, specular baumhauerite crystal on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture width 1 cm. © Walter Gabriel
Baumhauerite-2a: Pb3As4S9 Sphalerite: (Zn,Fe)S
Comments: Dark crystal of baumhauerite-2a (same shape as baumhauerite) with olive-green transparent sphalerite crystal on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture 2 cm tall. © Walter Gabriel
Baumstarkite: Ag3(Sb,As)2SbS6
Comments: Fragments of baumstarkite with zoning of darker lamellae with higher As content. (AmMin 87:755). Location: San Genaro mine, Huancavelica Department, Peru.. Scale: See Image. © American Mineralogist
Bauranoite: BaU2O7·4-5(H2O)
Comments: Massive, orange-brown crystalline aggregate of bauranoite. Location: Strel'tsovskoye ore field, Krasnokamensk, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag
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