Mineral Class 06: Sulfates, Chromates, Molybdate | |
Sulfates, Selenates, Tellurates, Chromates, Molybdates, Wolframates This class represents great group of minerals with respective complexes: SO4, TeO4, CrO4, MoO4, WO4 tetrahedra. This class is classified into groups of hydrous and anhydrous minerals.
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Barite
Cavnic, Maramures, Romania
Old specimen - several clusters of glassy Barite crystals on matrix (pseudo morph); it weighs 1,5 kilogramme.and measures about 160 x 160 x 60 mm.
SOLD
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Gypsum var. Selenite so called - Fish-tail Twin
Locality: Naica, Chihuahua, Mexico
Several layers twinned selenite crystals with a matte surface texture giving a frosted appearance. It has only 1 small attachment point at the backside. Fishtail also known Angel Wing selenite from the Naica region, Mexico.
Measures approximately 100x70x35 mm and weighs approximately 0,275 kilogramme.
SOLD (to Larry, USA)
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Ettringite on calcite
Nchwaning II Mine, Kalahari, Northern Cape, South Africa
Bright yellow, ettringite crystals on small covering a small cluster calcite crystals. Measures approximately 20x26x15 mm
24.00 euro
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Wulfenite
Mexico, Chihuahua, Los Lamentos
Perfect orange brown (some double) wulfenite crystals on limonite matrix covert with brown colored calcite. Dimensions: 160x140x100 mm. Weight 1.518 kilogramme.
350.00 euro
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