Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit

The Guangxi Zhuang Autonomous Region is an important manganese ore district in Southwest China, with manganese ore resource reserves accounting for 23% of the total manganese ore resource reserves in China. The Xialei manganese deposit (Daxin County, Guangxi) is the first super-large manganese depos...

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Autores principales:	Sida Niu, Liqun Zhao, Xiaoju Lin, Tong Chen, Yingchao Wang, Lingchao Mo, Xianglong Niu, Huaying Wu, Min Zhang, Jan Marten Huizenga, Peng Long
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	manganese oxide Xialei Mn deposit mineral composition crystal structure pyrolusite Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/8e6c8613c68045b2af4967d18fe8c53a
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spelling	oai:doaj.org-article:8e6c8613c68045b2af4967d18fe8c53a2021-11-25T18:26:33ZMineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit10.3390/min111112432075-163Xhttps://doaj.org/article/8e6c8613c68045b2af4967d18fe8c53a2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1243https://doaj.org/toc/2075-163XThe Guangxi Zhuang Autonomous Region is an important manganese ore district in Southwest China, with manganese ore resource reserves accounting for 23% of the total manganese ore resource reserves in China. The Xialei manganese deposit (Daxin County, Guangxi) is the first super-large manganese deposit discovered in China. The Mn oxide in the supergene oxidation zone of the Xialei deposit was characterized using scanning electron microscopy (SEM), energy spectrometer (EDS), transmission electron microscopy (TEM, HRTEM), and X-ray diffraction analysis (XRD). The Mn oxides have a gray-black/steel-gray color, a semi-metallic-earthy luster, and appear as oolitic, pisolitic, banded, massive, and cellular textures. Scanning electron microscopy images show that the manganese oxide minerals are present as fine-spherical particles with an earthy surface. TEM and HRTEM indicate the presence of oriented bundled and staggered nanorods, and nanopores between the crystals. The Mn oxide ore can be classified into two textural types: (1) oolitic and pisolitic (often with annuli) Mn oxide, and (2) massive Mn oxide. Pyrolusite, cryptomelane, and hollandite are the main Mn oxide minerals. The potassium contents of cryptomelane and pyrolusite are discussed. The unit cell parameters of pyrolusite are refined.Sida NiuLiqun ZhaoXiaoju LinTong ChenYingchao WangLingchao MoXianglong NiuHuaying WuMin ZhangJan Marten HuizengaPeng LongMDPI AGarticlemanganese oxideXialei Mn depositmineral compositioncrystal structurepyrolusiteMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1243, p 1243 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	manganese oxide Xialei Mn deposit mineral composition crystal structure pyrolusite Mineralogy QE351-399.2
spellingShingle	manganese oxide Xialei Mn deposit mineral composition crystal structure pyrolusite Mineralogy QE351-399.2 Sida Niu Liqun Zhao Xiaoju Lin Tong Chen Yingchao Wang Lingchao Mo Xianglong Niu Huaying Wu Min Zhang Jan Marten Huizenga Peng Long Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
description	The Guangxi Zhuang Autonomous Region is an important manganese ore district in Southwest China, with manganese ore resource reserves accounting for 23% of the total manganese ore resource reserves in China. The Xialei manganese deposit (Daxin County, Guangxi) is the first super-large manganese deposit discovered in China. The Mn oxide in the supergene oxidation zone of the Xialei deposit was characterized using scanning electron microscopy (SEM), energy spectrometer (EDS), transmission electron microscopy (TEM, HRTEM), and X-ray diffraction analysis (XRD). The Mn oxides have a gray-black/steel-gray color, a semi-metallic-earthy luster, and appear as oolitic, pisolitic, banded, massive, and cellular textures. Scanning electron microscopy images show that the manganese oxide minerals are present as fine-spherical particles with an earthy surface. TEM and HRTEM indicate the presence of oriented bundled and staggered nanorods, and nanopores between the crystals. The Mn oxide ore can be classified into two textural types: (1) oolitic and pisolitic (often with annuli) Mn oxide, and (2) massive Mn oxide. Pyrolusite, cryptomelane, and hollandite are the main Mn oxide minerals. The potassium contents of cryptomelane and pyrolusite are discussed. The unit cell parameters of pyrolusite are refined.
format	article
author	Sida Niu Liqun Zhao Xiaoju Lin Tong Chen Yingchao Wang Lingchao Mo Xianglong Niu Huaying Wu Min Zhang Jan Marten Huizenga Peng Long
author_facet	Sida Niu Liqun Zhao Xiaoju Lin Tong Chen Yingchao Wang Lingchao Mo Xianglong Niu Huaying Wu Min Zhang Jan Marten Huizenga Peng Long
author_sort	Sida Niu
title	Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
title_short	Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
title_full	Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
title_fullStr	Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
title_full_unstemmed	Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit
title_sort	mineralogical characterization of manganese oxide minerals of the devonian xialei manganese deposit
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8e6c8613c68045b2af4967d18fe8c53a
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Mineralogical Characterization of Manganese Oxide Minerals of the Devonian Xialei Manganese Deposit

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