| 词条 | Belakovskiite |
| 释义 |
| name = Belakovskiite | category = Sulfate mineral | image = | imagesize = | alt = | caption = | formula = Na7(UO2)(SO4)4(SO3OH)(H2O)3 | strunz = | dana = | system = Triclinic | class = Pinacoidal ({{overline|1}}) (same H-M symbol) | symmetry = P{{overline|1}} | unit cell = a = 5.46, b = 11.33, c = 18.42 [Å], α = 104.77°, β = 90.09°, γ = 96.77° (approximated); Z = 2 | color = Yellow-green | colour = | habit = fibrous | twinning = | cleavage = None | fracture = | tenacity = Brittle | mohs = 2 | luster = Vitreous | streak = White | diaphaneity = Transparent | gravity = | density = 3.31 (calculated); 3.23 (measured) | polish = | opticalprop = Biaxal (+) | refractive = nα=1.50, nβ=1.51, nγ=1.52 (approximated) | birefringence = | pleochroism = None | 2V = 88o (calculated) | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = Radioactive | references = [1][2][1] }}Belakovskiite is a very rare uranium mineral with the formula Na7(UO2)(SO4)4(SO3OH)(H2O)3.[2][3] It is interesting in being a natural uranyl salt with hydrosulfate anion, a feature shared with meisserite.[4] Other chemically related minerals include fermiite, oppenheimerite, natrozippeite and plášilite.[5][6][7][8] Most of these uranyl sulfate minerals was originally found in the Blue Lizard mine, San Juan County, Utah, US.[9] The mineral is named after Russian mineralogist Dmitry Ilych Belakovskiy.[2] AssociationBelakovskiite is associated with other sulfate minerals: meisserite, blödite, ferrinatrite, kröhnkite, and metavoltine.[2]This association is found as efflorescences on a sandstone associated with uranium mineralization.[1] Crystal structureThe framework of belakovskiite is unique. The main building block of its crystal structure is a hexavalent cluster with composition (UO2)(SO4)4(H2O). Such clusters are connected via Na-O and hydrogen bonds.[2] References1. ^1 {{cite web|url=http://www.handbookofmineralogy.org/pdfs/belakovskiite.pdf |title=Belakovskiite - Handbook of Mineralogy |website=Handbookofmineralogy.org |accessdate=2016-03-10}} {{sulfate-mineral-stub}}2. ^1 2 3 4 Kampf, A.R., Plášil, J., Kasatkin, A.V., and Marty, J., 2014. Belakovskiite, Na7(UO2)(SO4)4(SO3OH)(H2O)3, a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine 78(3), 639-649 3. ^1 {{cite web |url=http://www.mindat.org/min-45960.html |title=Belakovskiite: Belakovskiite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 4. ^{{cite web |url=http://www.mindat.org/min-43905.html |title=Meisserite: Meisserite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 5. ^{{cite web|url=http://www.mindat.org/min-46506.html |title=Fermiite: Fermiite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 6. ^{{cite web|url=http://www.mindat.org/min-46514.html |title=Oppenheimerite: Oppenheimerite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 7. ^{{cite web|url=http://www.mindat.org/min-3694.html |title=Natrozippeite: Natrozippeite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 8. ^{{cite web|url=http://www.mindat.org/min-46145.html |title=Plášilite: Plášilite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 9. ^{{cite web|url=http://www.mindat.org/loc-38665.html |title=Blue Lizard Mine, Chocolate Drop, Red Canyon, White Canyon District, San Juan Co., Utah, USA - Mindat.org |website=Mindat.org |accessdate=2016-03-10}} 4 : Uranium minerals|Sulfate minerals|Sodium minerals|Triclinic minerals |
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