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Bernalite: Fe(OH)3
Comments: B&W image of pseudo-octahedral crystals of bernalite on goethite. (AmMin, v78:827). Location: Proprietary mine, Broken Hill, New South Wales, Australia. Scale: Scale Bar 3 mm. © American Mineralogist
Berndtite: SnS2 Tschermigite: (NH4)Al(SO4)2·12(H2O)
Comments: Yellow crystalline berndtite on tschermigite. Location: Shamokin, Northumberland County, Pennsylvania, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berryite: Cu3Ag2Pb3Bi7S16 Aikinite: PbCuBiS3
Comments: Fine-grained, gray, metallic granular berryite with silvery, metallic, prismatic aikinite. Location: Mike Mine, San Juan County, Colorado. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berthierine: (Fe++,Fe+++,Al,Mg)2-3(Si,Al)2O5(OH)4
Comments: Berthierine-1M, black pseudomorphs after cordylite-(Ce) crystals. Location: Mont Saint Hilaire, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Berthierite: FeSb2S4
Comments: Prismatic crystals of berthierite, tarnished bronze metallic, with stibnite and quartz crystals. Location: San Martin Mine, Zacatecas, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Bertossaite: Li2CaAl4(PO4)4(OH)4
Comments: Pale pinkish crystalline bertossaite with yellowish apatite and blue lazulite. Location: Buranga Pegmatite, near Gatumba, Gisenyi, Rwanda. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Bertrandite: Be4Si2O7(OH)2
Comments: Colorless prismatic crystals of bertrandite on matrix with pale pink rhombohedral crystals of rhodochrosite. Location: Yiaoguanshen mine, Hunan Province, China. Scale: 3.5 x 4 cm. © Dan Weinrich
Comments: Fan-like clusters of bertrandite crystals with brown rhodochrosite and quartz. Location: Kara Oba, Kazakhstan. Scale: Crystal size 1.1 cm. © John Veevaert
Beryl: Be3Al2Si6O18
Comments: Transparent Goshenite, the colorless variety of beryl with orthoclase and muscovite. Location: Pingwu, Sichuan, China. Scale: 9 x 8.5 cm. © Fabre Minerals
Comments: Red beryl prism on rhyolite matrix. Location: Violet claims, Wah Wah Mountains, Beaver County, Utah, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Comments: Transparent Heliodor, the yellow variety of beryl. Location: Wolodarsk, Wolynsky, Ukraine. Scale: 2.8 x 0.7 cm. © John Veevaert
Beryl: Be3Al2Si6O18 Calcite: CaCO3
Comments: Transparent emerald, the green variety of beryl on calcite (marble) matrix. Location: Coscuez, Boyacá, Colombia. Scale: 2.5 x 2.5 cm. © Fabre Minerals