a Minerals

Bournonite (twinned crystals) from La Oroya, Yauli Province, Peru

Bournonite (twinned crystals) from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China

Bournonite (twinned crystals) from Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China

Bournonite (twinned crystals) with Boulangerite micros from Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China

Bournonite (twinned crystals) with Quartz from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite and Chalcopyrite from Baia Sprie (Felsöbánya), Maramures, Romania

Bournonite and Pyrite from Noche Buena, Mazapil, Zacatecas, Mexico

Bournonite and Pyrite from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

Bournonite and Pyrite on Quartz from Machacamarca Mine, Cornelio Saavedra, Potosí, Bolivia

Bournonite and Quartz from Casapalca District, Huarochiri Province, Peru

Bournonite and Sphalerite from Morococha District, Yauli Province, Peru

Bournonite and Sphalerite on Pyrite from Trepca District, 10 km east of Kosozska Mitrovica, Kosovo

Bournonite and Sphalerite on Quartz from Banská Stiavnica (Schemnitz), Banská Bystrica, Stiavnicke Mountains, Slovak Republic (Slovakia)

Bournonite and Sphalerite on Quartz from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

Bournonite and Stannite on Quartz from Yaogangxian Mine, Hunan, China

Bournonite complexly twinned crystals on Quartz from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite on Chalcopyrite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite on Galena from Casapalca District, Huarochiri Province, Peru

Bournonite on Galena from Casapalca District, Huarochiri Province, Peru

Bournonite on Quartz from Shaft #5, Baia Sprie, Romania

Bournonite on Quartz from Casapalca District, Huarochiri Province, Lima Department, Peru

Bournonite on Quartz from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

Bournonite on Quartz from Herodsfoot Mine, Liskeard District, Cornwall, England

Bournonite on Quartz with Pyrite and Calcite from Cavnic Mine (Kapnikbanya), Maramures, Romania

Bournonite on Tetrahedrite from La Oroya, Junin Province, Peru

Bournonite on Tetrahedrite from Herodsfoot Mine, Liskeard, Cornwall, England (Type Locality for Tetrahedrite)

Bournonite with Boulangerite over Pyrite and Sphalerite from Rodna Veche, Bistri?a-Nasaud, Romania

Bournonite with Chalcopyrite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite with Chalcopyrite in epitactic orientation from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite with Jamesonite-Boulangerite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite with Quartz from Enterprise Mine, Newman Hill, SE of Rico, Dolores County, Colorado

Bournonite with Quartz from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite with Quartz from Carhuacayan District, Junín Department, Peru

Bournonite with Quartz and Arsenopyrite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite with Quartz and Jamesonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite, Calcite, Pyrite, Sphalerite from Naica District, Saucillo, Chihuahua, Mexico

Bournonite, Chalcopyrite, Quartz from Baia Sprie (Felsöbánya), Maramures, Romania

Bournonite, Dolomite and Jamesonite-Boulangerite inclusions in Fluorite on Ferberite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite, Pyrite, Quartz from Quiruvilca Mine, Santiago de Chuco Province, La Libertad Department, Peru

Bournonite, Pyrite, Quartz from Concepción del Oro, Zacatecas, Mexico

Bournonite, Pyrite, Quartz from Mine No. 6, Baia Sprie (Felsöbánya), Maramures, Romania

Bournonite, Quartz, Pyrite from Mina Machacamarca, Viboras section, near Colavi, Potosi, Bolivia

Bournonite, Quartz, Pyrite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite, Siderite, Quartz from Cornwall, England (Type Locality for Bournonite)

Bournonite, Sphalerite, Boulangerite, Pyrite from Baia Mare, Maramures, Romania

Bournonite, Sphalerite, Galena, Pyrite from Rodna Mountains, Maramures, Romania

Bournonite, Sphalerite, Galena, Pyrite, Quartz from Baia Sprie (Felsöbánya), Maramures, Romania

Bournonite, Sphalerite, Quartz, Pyrite from Pachapaqui District, Bolognesi Province, Ancash Department, Peru

Braitschite-(Ce) from Cane Creek Potash Mine, Moab, Grand County, Utah (Type Locality for Braitschite-(Ce))

Brandtite from Harstigen, Filipstad, Värmland, Sweden (Type Locality for Brandtite)

Brandtite and Sarkinite on Franklinite and Willemite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey (Type Locality for Franklinite)

Brannockite and Bavenite from Foote Mine, Kings Mt., Cleveland County, North Carolina (Type Locality for Brannockite)

Braunite from Ohrenstock, Thuringia, Germany (Type Locality for Braunite)

Braunite and Piemontite from Tone Mine, Kinkai-cho, Nishisonogi-gun, Nagasaki, Japan

Braunite on Bixbyite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Braunite on Pyrolusite from Gremmelsbach, near Triberg, Schwarzwald, Baden-Württemberg, Germany

Braunite-II and Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Braunite-II on Bixbyite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Bravoite in Smaltite-Skutterudite from Cobalt District, Ontario, Canada

Bravoite on Pyrite from Rico, Dolores County, Colorado

Bravoite on Pyrite from Rico, Dolores County, Colorado

Bravoite on Pyrite from Rico, Dolores County, Colorado

Brazilianite from Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Mendes Pimental pegmatite, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Mendes Pimental Mine, Baixo Guandu, Minas Gerais, Brazil

Brazilianite from Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Baixo Guandu, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Santa Maria, Jenipapo, Itinga, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Palermo Mine, North Groton Pegmatite District, Grafton County, New Hampshire

Brazilianite from Telirio Mine, Linopolis, Minas Gerais, Brazil

Brazilianite from Mendes Pimental Mine, Baixo Guandu, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Córrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Conselheiro Pena, Doce Valley, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Conselheiro Pena, Doce Valley, Minas Gerais, Brazil

Brazilianite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite from Chandlers Mill Quarry, west of Newport, Sullivan County, New Hampshire

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from G. F. Smith Mine, Chandlers Mill, west of Newport, Sullivan County, New Hampshire

Brazilianite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite (gem-grade) from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Albite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Brazilianite on Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite on Muscovite from Lavra do Telírio, Linópolis, Divino de Laranjeras, Minas Gerais, Brazil

Brazilianite with Albite from Minas Gerais, Brazil

Brazilianite with Albite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite with Muscovite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite with Muscovite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite with Muscovite from Lavra do Telírio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil

Brazilianite with Muscovite from Lavra do Corrego Frio, Linópolis, Divino das Laranjeras, Minas Gerais, Brazil (Type Locality for Brazilianite)

Breithauptite from Nipissing Mine, Cobalt District, Ontario, Canada

Brewsterite-Sr and Harmotome from Bellsgrove Mine, Argylshire, England (Type Locality for Brewsterite-Sr)

Brewsterite-Sr on Calcite from Clashgorm Mine, Strontian, North West Highlands, Scotland (Type Locality for Brewsterite-Sr)

Brewsterite-Sr with Calcite from Whitesmith Mine, near Strontian, Loch Sunart, Highland (formerly Argyll), Scotland (Type Locality for Brewsterite-Sr)

Britvinite (IMA 2006-031) with Hausmannite, Calcite from Långban Mine, Filipstad, Värmland, Sweden (Type Locality for Britvinite (IMA 2006-031))

Britvinite with Calcite and Hausmannite from Långban Mine, Filipstad, Värmland, Sweden (Type Locality for Britvinite)

Brochantite from Two Buzzards Mine, Wickenburg, Arizona

Brochantite from Mex-Texx Mine, Bingham, New Mexico