鸟粪石(NH4)2Mg2(C2O4) (PO3OH)2•4H2O phoxite的形成及其产状

IF 0.8 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Transactions of the Royal Society of South Australia Pub Date : 2022-07-03 DOI:10.1080/03721426.2022.2119712

M. R. Snow, P. Elliott

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引用次数: 0

摘要

布里奇在西澳大利亚Petrogale洞穴中发现的未知矿物A已被证明是phoxite，这是最近在美国亚利桑那州Rowley矿中发现的一种矿物。这是第二次记录到的磷矿赋存，在类型部位与鸟粪石(NH4)Mg(PO4)·6H2O赋存，在Petrogale洞与钙(C2O4)·2H2O赋存。鸟粪石、新辉石、MgHPO4·3H2O可与草酸铵在水中反应或将固体研磨在一起合成Phoxite。在高湿度条件下，将新辉石或鸟粪石与草酸铵混合，可清洁合成磷矿。另一个与之竞争的反应是形成草酸镁二水合物(矿物glushinskite)。然而，虽然在固体中稳定，但用水洗涤可以使phoxite恢复为鸟粪石，作为固液平衡的一部分。

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Formation of phoxite, (NH4)2Mg2(C2O4) (PO3OH)2•4H2O, from struvite and its occurrence in Petrogale Cave, Western Australia

ABSTRACT The mineral unknown A reported by Bridge from the Petrogale Cave in Western Australia has been shown to be phoxite, a recently described mineral from the Rowley mine in Arizona, USA. This is only the second recorded occurrence of phoxite, and while at the type locality, it occurs with struvite, (NH4)Mg(PO4)·6H2O, at the Petrogale Cave, it occurs with weddellite, Ca(C2O4)·2H2O. Phoxite can be synthesised from struvite or newberyite, MgHPO4·3H2O, by reaction with ammonium oxalate in water or by grinding the solids together. Mixing newberyite or struvite with ammonium oxalate in high humidity enables a clean synthesis of phoxite. A competing reaction is the formation of magnesium oxalate dihydrate (the mineral glushinskite). However, while stable in the solid, washing with water allows phoxite to revert to struvite, as part of a solid liquid equilibrium.

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来源期刊

Transactions of the Royal Society of South Australia 综合性期刊-综合性期刊

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： Published since 1880, the Transactions of the Royal Society of South Australia is a multidisciplinary journal that aims to publish high quality, peer-reviewed papers of particular relevance to Australasia. There is a particular focus on natural history topics such as: botany, zoology, geology, geomorphology, palaeontology, meteorology, geophysics, biophysics, soil science and environmental science, and environmental health. However, the journal is not restricted to these fields, with papers concerning epidemiology, ethnology, anthropology, linguistics, and the history of science and exploration also welcomed. Submissions are welcome from all authors, and membership of the Royal Society of South Australia is not required. The following types of manuscripts are welcome: Reviews, Original Research Papers, History of Science and Exploration, Brief Communications, Obituaries.