Mineral Specimen Images (B)

Bianchite: (Zn,Fe++)(SO4)·6(H2O)

Comments: White powdery crust of bianchite on clear to white gypsum.
Location: Glomsrudhollen, Amot, Modum, Buskerud, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bicchulite: Ca2Al2SiO6(OH)2

Comments: White microcrystalline bicchulite associated with calcite and vesuvianite.
Location: Fuka Mine, Bitchu-Cho, Okayama Prefecture, Chugoku Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

Bideauxite: Pb2AgCl3(F,OH)2

Comments: Brownish cubic crystals of bideauxite with blue boleite in tan limonitic matrix.
Location: Mammoth-St Anthony mine, Pinal County, Arizona, USA. Scale: Specimen size 2 x 3 cm.
© Dave Barthelmy

Bideauxite: Pb2AgCl3(F,OH)2

Comments: Richard Bideaux, American mineralogist, co-author of the Handbook of Mineralogy, Volumes I to V, mineral collector, and the person whom bideauxite is named after, kindly provided the mineral name pronunciation for bideauxite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 14, 2004. Scale: NA.
© Dave Barthelmy

Bieberite: CoSO4·7(H2O)

Comments: Pink crust of bieberite with dark blue chalcanthite.
Location: Katanga, Shaba, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biehlite: (Sb,As)2MoO6

Comments: White fibrous crystals of biehlite.
Location: Tsumeb, Namibia. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Bigcreekite: BaSi2O5·4(H2O)  
Gillespite: BaFe++Si4O10  
Sanbornite: BaSi2O5

Comments: Tiny white, spherical patterns, halo-like crystals of bigcreekite to about 0.5mm and reddish gillespite in a matrix of pale yellowish sanbornite.
Location: Trumbull Peak, Mariposa Co., California, United States. Scale: 2.5 x 2 x 2cm.
© Tom Loomis / Dakota Matrix

Bikitaite: Li2[Al2Si4O12]·2(H2O)

Comments: Clear, crystalline bikitaite laths on matrix.
Location: Foote mine, Kings Mountain, Cleveland County, North Carolina, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bilinite: Fe++Fe+++2(SO4)4·22(H2O)

Comments: Powdery crust of white bilinite on pyrite.
Location: Bisbee, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Billietite: Ba(UO2)6O4(OH)6·8(H2O)

Comments: Clear, yellow crystal of billietite.
Location: Shinkolobwe mine, Tantara, Shaba, Dem. Repub. Congo. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Billietite: Ba(UO2)6O4(OH)6·8(H2O)  
Studtite: [(UO2)O2(H2O)2](H2O)2

Comments: Acicular, white sprays of studtite crystals on yellow, tabular billietite.
Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Billingsleyite: Ag7AsS6

Comments: Gray-black billingsleyite crystals on matrix with famatinite, arsenopyrite.
Location: Grube Clara, Oberwolfach, Schwarzwald, Germany. Scale: Picture size 1.0 x 0.6 cm.
© Diederik Visser

Bindheimite: Pb2Sb2O6(O,OH)

Comments: Yellow earthy bindheimite covering red, massive crocoite.
Location: Callenberg North (no. 1) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2

Comments: Brown book of pseudohexagonal biotite crystals in matrix.
Location: Sattleberg, Laacher See, Rhineland-Palatinate, Germany. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2

Comments: Sharp hexagonal plates of dark brown biotite to 2.5 cm. across, with white albite.
Location: Brazil. Scale: 6.9x5.5x3 cm.
© Richard Dale / Dale Minerals

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2  
Anthophyllite: [ ]Mg7Si8O22(OH)2

Comments: Fibrous mass of anthophyllite as a shell around biotite.
Location: Hermanov, Severocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2  
Wohlerite: NaCa2(Zr,Nb)Si2O7(O,OH,F)2

Comments: Prismatic wohlerite crystals with lepidomelane (Fe-rich biotite).
Location: Langevannet, Tvedalen, Telemark, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biphosphammite: (NH4,K)H2PO4

Comments: Vuggy, dark green-brown biphosphammite.
Location: Mason Bat Cave, Mason County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biphosphammite: (NH4,K)H2PO4  
Archerite: (K,NH4)H2PO4

Comments: Buff-colored biphosphammite with white archerite crusts.
Location: Cockelbiddy Cave, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Biraite-(Ce): Ce2Fe++(CO3)(Si2O7)

Comments: Brown grains of biraite-(Ce) in matrix.
Location: Biraya Fe-REE Ore occurrence, Vitim Highland, Buratie Republic, Eastern Siberia, Russia. Scale: Not Given.
© Diederik Visser