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在标准条件下测定了人工合成的铀酰砷酸盐的溶度积(H-钙砷铀云母10~(-45 58),翠砷铜铀矿10~(-48 96),钙砷铀云母10~(-45 79),镁砷铀云母10~(-44 44))和生成它们的吉布斯自由能。证明了这些矿物只有在含砷的内生铀矿石的氧化带中才能产生。因为其中第一种矿物产生于酸性介质中,第二种矿物产生于弱酸性价质中,第三种矿物产生于中性和碱性介质中。形戎镁砷铀云母需要补充镁源。钠钙砷铀云母是在极干燥的气候条件下,从高盐度水中形成的。与铀酰磷酸盐和铀酰钒酸盐不同,在自然界中不大可能由自身淋滤堆积作用产生原生铀酰砷酸盐。
Under normal conditions, the solubility product of synthetic uranyl arsenate (H-calcium arsenic uranium mica 10 ~ (-45 58), Cu arsenic copper uranium ore 10 ~ (-48 96), calcium arsenic uranium mica 10- (-45 79), Magnesium arsenic uranium mica 10 ~ (-44 44)) and the Gibbs free energy that generates them. It is proved that these minerals can only be produced in the oxidation zone of endogenous uranium ore containing arsenic. Because the first of these minerals is produced in an acidic medium, the second is derived from a weak acidity and the third is from a neutral and alkaline medium. Shaped magnesium arsenic uranium mica need to add magnesium source. Sodium Calcium Arsenic Uranium mica is formed from highly salty water under very dry climatic conditions. Unlike uranyl phosphate and uranyl vanadate, it is unlikely that native uranyl arsenate will be produced by leaching itself in nature.