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Bromargyrite: AgBr
Comments: Butterscotch colored bromargyrite cube. Location: Broken Hill, New South Wales, Australia. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Bromellite: BeO
Comments: Nearly colorless translucent crystalline bromellite in chloritic schistose rock. Location: Pitkyaranta, Republic of Karelia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Bromellite: BeO Magnesioferrite: MgFe+++2O4
Comments: A micro, water color, hexagonal or barrel shaped crystal of white bromellite to about 0.3 mm on yellowish calcite with associated black magnesioferrite. Location: Langban, Varmland, Sweden. Scale: 18x9x10mm. © Tom Loomis / Dakota Matrix
Brookite: TiO2
Comments: Brookite crystal group on matrix. During the 19th century this site produced some of the best brookite ever seen. Location: Classic Welsh locality of Prenteg, Gwynedd, Wales, UK. Scale: 4 x 4.5 cm. © Fabre Minerals
Brownleeite: MnSi
Comments: Cubic grain of brownleeite (false colored magenta) in the bottom of a pit as captured by aerogel. Location: Interplanetary dust particle (IDP) that appears to have originated from comet 26P/Grigg-Skjellerup. Scale: See Image. © NASA
Brownmillerite: Ca2(Al,Fe+++)2O5 Reinhardbraunsite: Ca5(SiO4)2(OH,F)2
Comments: Pink crystalline reinhardbraunsite in brownmillerite. Location: Near Bellerberg, Eifel, Rheinland-Pflaz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Brownmillerite: Ca2(Al,Fe+++)2O5
Comments: Brownish-orange masses of brownmillerite in skarn. Location: Bellerberg, Ettringen, Eifel Mountains, Rheinland-Pfalz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Brucite: Mg(OH)2
Comments: Crystal cluster of brucite. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 7 x 5 x 4 cm. © John Veevaert
Comments: Pearly white, pseudohexagonal crystals of brucite on matrix. Location: Pilcante, Trentino, Italy. Scale: Crystal size 1.6 cm. © Sandro Maggia/Minernet.it
Brugnatellite: Mg6Fe+++(CO3)(OH)13·4(H2O)
Comments: Botryoidal brugnatellite. Location: Monte Ramazzo, Liguria, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species