#mineral
Silvery hairs of Native Selenium on Coal matrix
Locality: Kladno Mine, Libušin, Kladno, Central Bohemian Region, Czech Republic
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Nickeline and Nickelskutterudite in matrix
Locality: Niederschlema, Bad Schlema, Erzgebirge, Saxony, Germany
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Bismuthinite with Cassiterite
Locality: La Salvadora Mine, Cerro Bonete, Sud Lípez Province, Potosi Department, Bolivia
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Hyalite and Carbonate-Rich Fluorapatite on Matrix
Locality: Valeč, Doupov, Karlovy Vary Region, Czech Republic
Matrix is Augite Leucitic Tephrite +/- Magnetite
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Native Silver w/ Acanthite and Calcite
Locality: Kongsberg Silver Mines, Kongsberg, Viken, Norway
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Native Antimony on Matrix
Locality: Pezinok, Pezinok County, Bratislava Region, Slovakia (Slovak Republic)
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Charoite w/ Tinaksite and Aegirine
Locality: Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
*Charoite and Tinaksite Type Locality
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Benitoite from the Benitoite Gem Mine in San Benito County, California, the type locality. Benitoite is a rare blue barium titanium silicate mineral and is considered to be one of the rarest minerals/gemstones in the world. It was discovered in 1907 and is the State Gemstone of California. According to www.minerals.net, “The crystal structure of Benitoite is unique, and is the only significant mineral in its crystal class. It crystallizes in a rare hexagonal sub-class called ditrigonal-dipyramidal.” Pictured under short wave ultraviolet, white light, and long wave ultraviolet.
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Calcite and rutile, Crestola Bassa, photo by Andrea Morino
Tennantite subgroup, Les Ferreres Mine, Spain, Photo by Fran Garcia Alacid
Thomsonite, Papeno'o valley, France, photo by Jean-Vincent Coureau
Anatase, Margarethe mine, Germany, Photo by Elise Chaigneau
Rutherfordine, sklodowskite, Musonoi Mine, DR Congo photo by Uwe Haubenreisser
