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Alum-(K) : KAl[SO4]2 · 12H2O |
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El Desierto mine, San Pablo de Napa, Daniel Campos Province, Potosà Department, Bolivia
A 3 mm crystal of Potassium alum with Sulphur from the El Desierto mine fumaroles, Potosi, Bolivia. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 54446 View Count: 424 |
Alum-(K) : KAl[SO4]2 · 12H2O |
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Longyearbyen, Spitsbergen, Svalbard, Norway
Intergrown crystals of potassium alum, obtained (bought) as kalinite... Field of view is 7 mm. |
| © L Kruszewski | Photo ID: 66954 View Count: 300 |
Alum-(K) : KAl[SO4]2 · 12H2O |
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Alum mine, Alum District, Esmeralda Co., Nevada, USA
Sample not crystallized with 4x3x1,5cm - April of 1985 |
| © Martins da Pedra | Photo ID: 50140 View Count: 817 |
Alum-(K) : KAl[SO4]2 · 12H2O |
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Alum King Occurrence (Big Star), Henry District, Antelope Range, Sevier Co., Utah, USA
5.4 x 5.0 x 2.7 cm. Lustrous, water-clear to translucent, super sharp, zoned potassium alum crystals from an uncommon Utah locality - the Alum King Mine in Piute County. The piece has neat, stepped triangular form, reflecting the isometric crystal structure. Ex. John Ydren Collection.
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| © Rob Lavinsky | Photo ID: 180767 View Count: 94 |
