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Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany Minute white Gearksutite xls form a little ball. Right beneath is an also minute black metallic Uranotungstite aggregate. Picture width 0,6 mm. Collection and foto Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 169506 View Count: 233 |
Gearksutite : Ca[Al(F,OH)5(H2O)] | |
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Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany Picture width 1,5 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 170243 View Count: 153 |
Gearksutite : Ca[Al(F,OH)5(H2O)] | |
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Christiana Mine, Kamariza Mines (Kamareza Mines), Agios Konstantinos [St Constantine] (Kamariza), Lavrion District Mines, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece Picture-Width = 3mm |
| © Elmar Lackner | Photo ID: 42444 View Count: 411 |
Gearksutite : Ca[Al(F,OH)5(H2O)] | |
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Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland White powdery Gearksutite filling cavities. |
| © James K.C.Huang | Photo ID: 3829 View Count: 949 |
Gearksutite : Ca[Al(F,OH)5(H2O)] | |
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La Veneziana Mine, Mercanti Valley, Torrebelvicino, Vicenza Province, Veneto, Italy dimension area mm. 6 x 6 photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 210834 View Count: 59 |
Gearksutite : Ca[Al(F,OH)5(H2O)], Linarite : PbCu[(OH)2|SO4] | |
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Monte Trisa, Mercanti Valley, Torrebelvicino, Vicenza Province, Veneto, Italy Several white Gearksutite white balls with blue Linarite crystals in a area of 2 mm. Collection M.Boscardin photo M.Chinellato |
| © Chinellato Matteo | Photo ID: 157216 View Count: 168 |
Gearksutite : Ca[Al(F,OH)5(H2O)], Quartz : SiO2 | |
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Kara-Oba W deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan Snow-white ultramicro-fibrous compact gearksutite agregate. It was formed during interaction of HF (produced by pyrite oxidation in fluorite matrix) with concretion of allophane or caoline into quartz-muscovite greisen. Associating minerals are quartz crystals and muscovite, forming crust of the concretion. Specimen size is 4x2x1.5 cm. Collected ... |
| © Pavel M. Kartashov | Photo ID: 147870 View Count: 219 |
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Eastern Kounrad Mo-W deposit, Balqash (Balkhash; Karatas; Prebalkhashie) Region, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan Snow-white and creamy ultramicro-fibrous compact gearksutite agregate. It was formed during interaction of HF (produced by pyrite oxidation in fluorite matrix) with concretion of allophane (white part) and gilbertite (creamy part with more coarse structure) agregate in greisen. Associating minerals are quartz crystals. Specimen size is 9x5.5x4 cm. ... |
| © Pavel M. Kartashov | Photo ID: 147878 View Count: 115 |
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Eastern Kounrad Mo-W deposit, Balqash (Balkhash; Karatas; Prebalkhashie) Region, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan Snow-white ultramicro-fibrous compact gearksutite agregate. It was formed during interaction of HF (produced by pyrite oxidation in fluorite matrix) with concretion of allophane into quartz-muscovite greisen. Associating minerals are quartz crystals and minor muscovite (var. gilbertite). Specimen size is 9x5.5x4 cm. Collected by Victor I. Stepanov ... |
| © Pavel M. Kartashov | Photo ID: 147871 View Count: 100 |
Gearksutite : Ca[Al(F,OH)5(H2O)], Elpasolite : NaK2[AlF6], Weberite : Na2Mg[F|AlF6] | |
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Perzhanskoe ore field (Perga Be deposit), Zhytomyr Oblast' (Zhitomir Oblast'), Ukraine White massive gearksutite is the latest mineral of the association. It had grown replacing a fine-grained pinkish to orange elpasolite+weberite mixture, itself being a replacement product of primary prosopite. Fragment of drill core. FOV ~6x6 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 74495 View Count: 238 |
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