锌铁矿，Zn（UO2）（SO4）2（H2O）5，来自美国犹他州圣胡安县蓝蜥蜴矿的锌类似物

IF 2.8 3区地球科学 Q2 MINERALOGY

Mineralogical Magazine Pub Date : 2023-03-03 DOI:10.1180/mgm.2023.14

A. R. Kampf, T. Olds, J. Plášil, J. Marty

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引用次数: 2

摘要

摘要：在美国犹他州圣胡安县的Blue Lizard矿中发现了新矿物锌质velite（IMA2022-070），即Zn（UO2）（SO4）2（H2O）5，它以黄色至橙色-黄色的叶片形式存在于与方辉橄榄岩、方辉橄榄石、卤垂青岩、锂辉石、变伏线石、菱铁矿、römerite、tamarugite和voltaite的次生组合中。条纹是非常淡黄色的。晶体透明，有玻璃光泽。韧性是脆性的，莫氏硬度约为2½，断裂是弯曲的。Cleavage在{010}上表现出色，在{100}上表现良好，在{001}上表现尚可。该矿物易溶于H2O，计算密度为3.376 g·cm–3。该矿物具有光学双轴性（+），α=1.568（2），β=1.577（2；2V=70（1）°。提供电子探针分析（Zn0.720Mg0.109Fe0.091Mn0.046Co0.035）∑1.00（UO2）（SO4）2（H2O）5。锌铁矿是斜方晶系，Pmn21，a=12.8712（9），b=8.3148（4），c=11.2959（4）Å，V=1208.90（11）Å3和Z=4。锌锌矿是铁锌矿的锌类似物。该结构单元是硫酸铀酰链，也存在于方辉橄榄岩、老橄榄岩、奥本海默岩和svornostite的结构中。

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Zincorietveldite, Zn(UO2)(SO4)2(H2O)5, the zinc analogue of rietveldite from the Blue Lizard mine, San Juan County, Utah, USA

Abstract The new mineral zincorietveldite (IMA2022-070), Zn(UO2)(SO4)2(H2O)5, was found in the Blue Lizard mine, San Juan County, Utah, USA, where it occurs as yellow to orange–yellow blades in a secondary assemblage with bobcookite, coquimbite, halotrichite, libbyite, metavoltine, rhomboclase, römerite, tamarugite and voltaite. The streak is very pale yellow. Crystals are transparent with vitreous lustre. The tenacity is brittle, the Mohs hardness is ~2½ and the fracture is curved. Cleavage is excellent on {010}, good on {100} and fair on {001}. The mineral is easily soluble in H2O and has a calculated density of 3.376 g⋅cm–3. The mineral is optically biaxial (+) with α = 1.568(2), β = 1.577(2) and γ = 1.595(2); 2V = 70(1)°. Electron microprobe analyses provided (Zn0.720Mg0.109Fe0.091Mn0.046Co0.035)Σ1.00(UO2)(SO4)2(H2O)5. Zincorietveldite is orthorhombic, Pmn21, a = 12.8712(9), b = 8.3148(4), c = 11.2959(4) Å, V = 1208.90(11) Å3 and Z = 4. Zincorietveldite is the Zn analogue of rietveldite. The structural unit is a uranyl-sulfate chain that is also found in the structures of bobcookite, oldsite, oppenheimerite and svornostite.

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来源期刊

Mineralogical Magazine 地学-矿物学

CiteScore

4.00

自引率

25.90%

发文量

104

审稿时长

6-12 weeks

期刊介绍： Mineralogical Magazine is an international journal of mineral sciences which covers the fields of mineralogy, crystallography, geochemistry, petrology, environmental geology and economic geology. The journal has been published continuously since the founding of the Mineralogical Society of Great Britain and Ireland in 1876 and is a leading journal in its field.