Mineral Specimen Images (B)

Barite: BaSO4  
Jacobsite: (Mn++,Fe++,Mg)(Fe+++,Mn+++)2O4

Comments: Sharp, octahedral crystals of Jacobsite on a bladed barite matrix.
Location: N' Chwaning II Mine, Kuruman, South Africa. Scale: 3x2.5x1.9 cm.
© Isaias Casanova / IC Minerals

Barite: BaSO4  
Wurtzite: (Zn,Fe)S

Comments: Compact, dark, metallic crystals of wurtzite intermixed with galena crystals and white barite blades.
Location: Huanzala, Huanuco Dept., Peru. Scale: 5 x 4 x 2.5 cm.
© Isaias Casanova / IC Minerals

Barite: BaSO4

Comments: Tabular, clear crystal of barite on a small matrix of pinkish dolomite. Fluorescence under UV light.
Location: Cerro Warihuyn, 2850 m, Miraflores, Huamalias, Huanuco Peru. Scale: 3.4 x 2.8 x 0.9 cm.
© Fabre Minerals

Barnesite: Na2V6O16·3(H2O)

Comments: Bright red, acicular crystals of barnesite on matrix.
Location: Cactus Rat claim, Thompson, Grand County, Utah, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Barrerite: (Na,K,Ca)2Al2Si7O18·6(H2O)

Comments: Barrerite, an extremely rare zeolite was found in large cavities on a tidal flat.
Location: Rocky Pass, Kuiu Island, Alaska. Scale: 5.5 x 6 cm.
© Fabre Minerals

Barringerite: (Fe,Ni)2P

Comments: Dark barringerite inclusions in nickel-iron meteorite (polished section.
Location: Canon Diablo Meteorite, Meteor Crater, Canon Diablo, Coconino County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Barringtonite: MgCO3·2(H2O)  
Lansfordite: MgCO3·5(H2O)

Comments: Optical images of clusters of glassy lansfordite crystals and one white dehydrated barringtonite ? crystal. (AmMin, 88:1883).
Location: Crystals associated with the remains of a saguaro, Carnegiea gigantea from south and west central Arizona. Scale: Scale bar 800 µ-m.
© American Mineralogist

Barroisite: [ ](CaNa)Mg3AlFe+++Si7AlO22(OH)2

Comments: Black, acicular, compact, massive barroisite.
Location: Monte Beigua, Savona, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Barstowite: Pb4(CO3)Cl6·(H2O)

Comments: SEM images of irregular prismatic barstowite with phosgenite. (MinMag, v55:378).
Location: Lead-antimony vein at the southwestern end of Bounds Cliff, St Endellion, Cornwall, UK. Scale: Scale bar left 400 µm right 100 µm.
© Mineralogical Magazine

Bartonite: K3Fe10S14

Comments: B&W polished section image showing an irregular remnant of bright pyrrhotite (py) in a matrix of bartonite (ba) veined by silicates. (AmMin, v66:369).
Location: Found in a mafic, alkalic diatreme at Coyote Peak, Humboldt County, California, USA. Scale: Picture Size 1.3? x 1.94 mm.
© American Mineralogist

Barylite: BaBe2Si2O7

Comments: Prismatic crystals of barylite exposed in a vug.
Location: Eveslogchorr Mt , Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Barylite: BaBe2Si2O7

Comments: Blocky prisimatic clear crystals of barylite with black aegirine.
Location: Mt. Malosa, Zomba plateau Malawi. Scale: 2 x 1.6 x 1.3 cm.
© Fabre Minerals

Barysilite: Pb8Mn(Si2O7)3

Comments: Clear, round plates of barysilite on a manganiferous matrix.
Location: Langban, Varmland, Sweden. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Barytocalcite: BaCa(CO3)2

Comments: Pale pink crystalline barytocalcite in dark matrix.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Barytocalcite: BaCa(CO3)2

Comments: White prismatic barytocalcite crystals to 6mm. Former Eaton Collection.
Location: Alston Moor, Cumberland, England. Scale: 3x2x2cm.
© Tom Loomis / Dakota Matrix

Barytolamprophyllite: Ba2Na3(Fe+++,Ti)3(Si2O7)2(O,OH,F)4  
Lamprophyllite: Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2

Comments: Brownish-yellow barytolamprophyllite on dark green lamprophyllite.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Basaluminite: Al4(SO4)(OH)10·5(H2O)

Comments: Clear, radial sprays of basaluminite crystals.
Location: Lavender Pit, Bisbee, Cochise County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bassanite: 2CaSO4·(H2O)

Comments: White, blocky bassanite crystals on matrix.
Location: Taft, Kern County, California, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bassetite: Fe++(UO2)2(PO4)2·8(H2O)

Comments: Bright yellow, bladed crystals of bassetite.
Location: Capoterra, near Cagliari, Sardinia, Italy. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bastnasite-(Ce): Ce(CO3)F

Comments: Platy crystal of bastnäsite-(Ce).
Location: Trimouns, Luzenac, Ariège, France. Scale: 0.8 cm.
© John Veevaert