Zhangpeishanite

Zhangpeishanite
Zhangpeishanite
General
Category	Mineral
Formula; (repeating unit)	BaFCl
IMA symbol	Zph[1]
Strunz classification	3.DC.25
Dana classification	9.2.11.3
Crystal system	Tetragonal
Crystal class	Ditetragonal Dipyramidal ; H-M symbol: 4/mmm ; (4/m 2/m 2/m)
Unit cell	111.00
Identification
Color	Colorless
Twinning	P4/nmm
Cleavage	Perfect on {001}
Mohs scale hardness	2.5
Luster	Vitreous
Streak	White
Diaphaneity	Transparent
Specific gravity	4.54
Density	4.54
Optical properties	Uniaxial (-)
Refractive index	nω = 1.656(2) ; nε = 1.652(2)
Birefringence	0.004
Ultraviolet fluorescence	None
Solubility	Soluble in water

Zhangpeishanite was named for Zhang Peishan (Chinese: 张培善) mineralogist due to his contributions to Bayan Obo, where the mineral is a type locality. The Bayan Obo deposit is also known for being a world class deposit. The mineral got approved by the IMA in 2006 but was published two years after its approval.[2]

Properties

Some of the datas collected about zhangpeishanite were carried out on a synthetic equivalent of the mineral, such as cleavage and refractive index, due to zhangpeishanite's minute grain size.[2] The mineral is isostructural with matlockite.[3] It is a member of the matlockite group, and it is the barium dominant analogue of rorisite and matlockite. It is associated with barite, hematite, norsethite and fluorite.[4] The inclusions form as bands within fluorite. The mineral occurs in fluorite as inclusions, up to 100 μm. However, they are typically much smaller, about 50 μm.[2] It consists of barium mostly (71.21%), chlorine (18.94%) and fluorine (9.85%).[5] Singular crystals can be obtained at 1500 K by solid-state reaction between BaF₂ and BaCl₂.[6]

References

Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
"Zhangpeishanite, BaFCl, a new mineral in fluorite from Bayan Obo, Inner Mongolia, China | Shimazaki, Hidehiko; Miyawaki, Ritsuro; Yokoyama, Kazumi; Matsubara, Satoshi; Yang, Zhuming | download". ur.booksc.eu. Retrieved 2021-08-13.
"Zhangpeishanite". www.mindat.org. Retrieved 2021-08-13.
"Zhangpeishanite, BaFCl, a new mineral in fluorite from Bayan Obo, Inner Mongolia, China | Request PDF". ResearchGate. Retrieved 2021-08-13.
"Zhangpeishanite Mineral Data". webmineral.com. Retrieved 2021-08-13.
Chukanov, Nikita V.; Chervonnyi, Alexandr D. (2016-03-09). Infrared Spectroscopy of Minerals and Related Compounds. Springer. ISBN 978-3-319-25349-7.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.

[:0-2] "Zhangpeishanite, BaFCl, a new mineral in fluorite from Bayan Obo, Inner Mongolia, China | Shimazaki, Hidehiko; Miyawaki, Ritsuro; Yokoyama, Kazumi; Matsubara, Satoshi; Yang, Zhuming | download". ur.booksc.eu. Retrieved 2021-08-13.

[3] "Zhangpeishanite". www.mindat.org. Retrieved 2021-08-13.

[4] "Zhangpeishanite, BaFCl, a new mineral in fluorite from Bayan Obo, Inner Mongolia, China | Request PDF". ResearchGate. Retrieved 2021-08-13.

[5] "Zhangpeishanite Mineral Data". webmineral.com. Retrieved 2021-08-13.

[6] Chukanov, Nikita V.; Chervonnyi, Alexandr D. (2016-03-09). Infrared Spectroscopy of Minerals and Related Compounds. Springer. ISBN 978-3-319-25349-7.