| 词条 | Uranocircite |
| 释义 |
| name = Uranocircite | boxwidth = | boxbgcolor = | image = Uranocircite-51177.jpg | imagesize = | alt = | caption = Uranocircite | category = Phosphate mineral | formula = Ba(UO2)2(PO4)2·10H2O | molweight = | strunz = 8.EB.05 | system = Tetragonal | class = Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m) | symmetry = I4/mmm | unit cell = a = 7.01, c = 20.46 [Å]; Z = 2 | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = [1][2] }} Uranocircite or Uranocircite-II is a uranium mineral with the chemical formula: Ba(UO2)2(PO4)2·10H2O. Uranocircite-I was discredited (the IMA-CMNMC published 'The New IMA List of Minerals', September 2012). It is a phosphate mineral which contains barium and is a green to yellow colour. It has a Mohs hardness of about 2. Uranocircite was named after the Greek for "falcon" because it was discovered in Falkenstein, Germany. Uranocircite contains about 45% uranium in it and is mainly mined in Bergen in Saxony, Germany. References1. ^http://www.mindat.org/min-4105.html Mindat 2. ^https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Uranocircite-II Mineralienatlas
3 : Uranium minerals|Phosphate minerals|Tetragonal minerals |
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