Thermodynamics of the Cu, Zn, and Cu-Zn phases: zincolivenite, adamite, olivenite, ludjibaite, strashimirite, and slavkovite

IF 1.1 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Geosciences Pub Date : 2023-02-20 DOI:10.3190/jgeosci.367

J. Majzlan, M. Števko, J. Plášil, J. Sejkora, E. Dachs

引用次数: 1

Abstract

Secondary minerals, especially phosphates and arsenates of copper and zinc, form a group of phases with astonishing variability in crystal structures and chemical composition. Some of these minerals are more common than others and one has to ask whether the abundance is linked to their thermodynamic stability or rather to geochemical constraints. In this work, we used calorimetric techniques to determine the thermodynamic properties of synthetic olivenite [Cu 2 (AsO 4 )(OH)], zincolivenite [Cu 0.95 Zn 1.05 (AsO 4 )(OH)], adamite [Zn 2 (AsO 4 )(OH)], ludjibaite [Cu 5 (PO 4 ) 2 (OH) 4 ], natural strashimirite [(Cu 7.75 Zn 0.09 ) 7.84 (AsO 4 ) 3.89 (SO 4 ) 0.11 (OH) 3.79 ·5H 2 O], and a slavkovite sample dehydrated

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Cu、Zn和Cu-Zn相的热力学：锌铝榴石、金刚石、橄榄岩、鲁吉白石、strashimirite和slavkovite

次生矿物，特别是铜和锌的磷酸盐和砷酸盐，形成了一组在晶体结构和化学成分上具有惊人变化的相。其中一些矿物比其他矿物更常见，人们不得不问，这种丰度是与它们的热力学稳定性有关，还是与地球化学的限制有关。本文采用量热法测定了合成橄榄石[cu2 (AsO 4)(OH)]、锌colivenite [Cu 0.95 Zn 1.05 (AsO 4)(OH)]、adamite [Zn 2 (AsO 4)(OH)]、ludjibaite [Cu 5 (po4) 2 (OH) 4]、天然辉石岩[(Cu 7.75 Zn 0.09) 7.84 (AsO 4) 3.89 (so4) 0.11 (OH) 3.79·5h2o]和一种脱水的slavkovite样品的热力学性质

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-MINERALOGY

CiteScore

2.30

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Geosciences is an international peer-reviewed journal published by the Czech Geological Society with support from the Czech Geological Survey. It accepts high-quality original research or review papers dealing with all aspects of the nature and origin of igneous and metamorphic rocks. The Journal focuses, mainly but not exclusively, on: -Process-oriented regional studies of igneous and metamorphic complexes- Research in structural geology and tectonics- Igneous and metamorphic petrology- Mineral chemistry and mineralogy- Major- and trace-element geochemistry, isotope geochemistry- Dating igneous activity and metamorphic events- Experimental petrology and mineralogy- Theoretical models of igneous and metamorphic processes- Mineralizing processes and mineral deposits. All the papers are written in English, even though they may be accompanied by an additional Czech abstract. Each contribution is a subject to peer review by at least two independent reviewers, typically at least one from abroad. The Journal appears 2 to 4 times a year. Formally it is divided in annual volumes, each of them including 4 issues.