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Benyacarite: (H2O,K)2Ti(Mn++,Fe++)2(Fe+++,Ti)2Ti(PO4)4(O,F)2·14(H2O)
Comments: Clear, transparent, pseudo-cubic benyacarite crystals on matrix. Location: Folgosinho Quarry, Folgosinho, Gouveia, Guarda District, Portugal. Scale: Specimen Size 4 x 3 cm. © Sergio Varvello / Mineral Service
Beraunite: Fe++Fe+++5(PO4)4(OH)5·4(H2O)
Comments: Green and reddish brown, beraunite aggregates. Location: Arean Claim, Three Oak Gap, Mena, Polk County, Arkansas, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Berborite: Be2(BO3)(OH,F)·(H2O)
Comments: Colorless, nearly transparent crystalline berborite in matrix. Location: Saga Quarry, Tvedalen, Vestfold, Norway. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berezanskite: KLi3Ti2Si12O30
Comments: Granular white berezanskite in quartz. Location: Dara-i-Pioz Glacier, Altai Range, Tadzhikistan. Scale: Specimen Size 1.5x2.5 cm. © Diederik Visser
Bergenite: Ca2Ba4[(UO3)2O2(PO4)2]3 (H2O)16
Comments: Bladed, radial aggregates of yellow bergenite crystals on matrix. Location: Bergen, Falkenstein, Vogtland, Saxony, Germany. Scale: Picture size 2.5 mm. © Paul M. Schumacher
Comments: Yellow bladed bergenite crystals. Location: Mechelserrun, Saxony, Germany. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bergslagite: CaBe(AsO4)(OH)
Comments: White (fluorescent) veinlet of bergslagite cutting through metallic, gray hematite. Location: Langban Mine Dump, Langban, Varmland, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berlinite: AlPO4 Lacroixite: NaAl(PO4)F
Comments: Pale olive green crystalline lacroixite with white crystalline berlinite. Location: Rusororo Pegmatite, Gatumba, Gisenyi, Rwanda. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berlinite: AlPO4 Trolleite: Al4(PO4)3(OH)3
Comments: Pinkish crystalline berlinite with blue trolleite. Location: Ijzer Mine, Vestana, Christiansted, Varmland, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Bermanite: Mn++Mn+++2(PO4)2(OH)2·4(H2O)
Comments: Brown bermanite crystal. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals