| 词条 | Oppenheimerite |
| 释义 |
| name = Oppenheimerite | category = Sulfate mineral | image = | imagesize = | alt = | caption = | formula = Na2(UO2)(SO4)2•3H2O | strunz = | dana = | system = Triclinic | class = Pinacoidal ({{overline|1}}) (same H-M symbol) | symmetry = P{{overline|1}} | unit cell = a = 7.96, b = 8.20, c = 9.81 [Å]; α = 65.97° β = 70.28°, γ = 91.46° (approximated), Z = 2 | color = Pale greenish-yellow | colour = | habit = prismatic | twinning = | cleavage = {1{{overline|1|}}0}, {011} and {101}, good | fracture = Irregular | tenacity = | mohs = 2.5 | luster = Vitreous | streak = White | diaphaneity = Transparent | gravity = | density = 3.36 (calculated) (approximated) | polish = | opticalprop = Biaxal (+) | refractive = nα=1.54, nβ=1.63, nγ=1.59 (approximated) | birefringence = | pleochroism = Very pale greenish-yellow (X), pale greenish-yellow (Y), greenish-yellow (Z) | 2V = 72o (measured) | dispersion = | extinction = | length fast/slow = | fluorescence = Greenish-white | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = Radioactive | references = [1][2] }}Oppenheimerite is a very rare uranium mineral with the formula Na2(UO2)(SO4)2•3H2O.[1][2] Chemically related minerals include fermiite, natrozippeite, plášilite, belakovskiite and meisserite.[3][4][5][6][7] Most of these uranyl sulfate minerals were originally found in the Blue Lizard mine, San Juan County, Utah, US.[8] The mineral is named after American Theoretical physicist J. Robert Oppenheimer.[2] Association and originOppenheimerite is associated with other sulfate minerals: fermiite, bluelizardite, wetherillite, blödite, chalcanthite, epsomite, gypsum, hexahydrite, kröhnkite, manganoblödite, sideronatrite, and tamarugite.[1] Crystal structureThe crystal structure of oppenheimerite is of a new type. It contains chains of the (UO2)(SO4)2(H2O) composition, connected with two types of sodium polyhedra.[1] References1. ^1 2 3 Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., and Čejka, J., 2015. Fermiite, Na4(UO2)(SO4)3·3H2O and oppenheimerite, Na2(UO2)(SO4)2·3H2O, two new uranyl sulfate minerals from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine 79(5), 1123-1142 {{sulfate-mineral-stub}}2. ^1 2 {{cite web |url=http://www.mindat.org/min-46514.html |title=Oppenheimerite: Oppenheimerite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 3. ^{{cite web|url=http://www.mindat.org/min-46506.html |title=Fermiite: Fermiite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 4. ^{{cite web|url=http://www.mindat.org/min-3694.html |title=Natrozippeite: Natrozippeite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 5. ^{{cite web|url=http://www.mindat.org/min-46145.html |title=Plášilite: Plášilite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 6. ^{{cite web |url=http://www.mindat.org/min-45960.html |title=Belakovskiite: Belakovskiite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 7. ^{{cite web |url=http://www.mindat.org/min-43905.html |title=Meisserite: Meisserite mineral information and data |website=Mindat.org |accessdate=2016-03-10}} 8. ^{{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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