Saleeite is a secondary uranium mineral occurring in the oxidized zones of uranium deposits, or as disseminations in carnotite-bearing sandstones. Its chemical formula is Mg(UO2)2(PO4)2·10(H2O).
Crystals are square plates, composite, flattened on {001}, with {001}, {100}, {120}, {012} (pseudotetragonal indices), to 2.5 cm; commonly in subparallel lamellar aggregates.
saleeite, secondary, uranium, mineral, occurring, oxidized, zones, uranium, deposits, disseminations, carnotite, bearing, sandstones, chemical, formula, generalcategoryphosphate, mineralsformula, repeating, unit, strunz, classification08, 05crystal, systemmono. Saleeite is a secondary uranium mineral occurring in the oxidized zones of uranium deposits or as disseminations in carnotite bearing sandstones Its chemical formula is Mg UO2 2 PO4 2 10 H2O SaleeiteGeneralCategoryPhosphate mineralsFormula repeating unit Mg UO2 2 PO4 2 10 H2O Strunz classification08 EB 05Crystal systemMonoclinicSpace groupMonoclinic 2 mUnit cella 6 951 3 A b 19 947 8 A c 9 896 4 A b 135 17 2 Z 2IdentificationColorLemon yellow straw yellow greenish yellowCrystal habitCrystals are square plates composite flattened on 001 with 001 100 120 012 pseudotetragonal indices to 2 5 cm commonly in subparallel lamellar aggregates CleavageOn 001 perfect on 010 110 indistinctLusterAdamantine to waxyDiaphaneityTransparent to opaqueSpecific gravity3 27Optical propertiesBiaxial typically nearly uniaxialRefractive indexna 1 554 1 559 nb 1 570 1 582 ng 1 571 1 585Birefringenced 0 027PleochroismX colorless Z pale greenish yellow2V angle2V meas 0 61 Ultraviolet fluorescenceFluoresces bright lemon yellow under LW UV pale yellow under SW UVOther characteristicsRadioactiveReferences 1 2 3 4 It was discovered in 1932 at Shinkolobwe Katanga Province Democratic Republic of the Congo and is named for Belgian mineralogist Achille Salee 1883 1932 Professor at Universite catholique de Louvain Belgium It was later determined that the Katanga mineral was meta saleeite Mg UO2 2 PO4 2 8 H2O and the type locality was assigned to the Weisser Hirsch Mine Neustadtel Schneeberg District Ore Mountains Saxony Germany 5 2 References edit 1 Handbook of Mineralogy a b 2 Mindat org 3 Saleeite Mineral Data 4 Uranium Minerals Mrose Mary E 1950 American Mineralogist 35 525 5 nbsp This article about a specific phosphate mineral is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Saleeite amp oldid 1197229182, wikipedia, wiki, book, books, library,
