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.
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.
The mineral is isostructural with
matlockite
Matlockite is a rare lead halide mineral, named after the town of Matlock in Derbyshire, England, where it was first discovered in a nearby mine. Matlockite (chemical formula: PbFCl) gives its name to the matlockite group which consists of rare ...
. It is a member of the matlockite group, and it is the
barium
Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element.
Th ...
dominant analogue of
rorisite and matlockite. It is associated with
barite
Baryte, barite or barytes ( or ) is a mineral consisting of barium sulfate ( Ba S O4). Baryte is generally white or colorless, and is the main source of the element barium. The ''baryte group'' consists of baryte, celestine (strontium sulfate), ...
,
hematite
Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of . ...
,
norsethite and
fluorite
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon.
The Mohs sca ...
. 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.
It consists of barium mostly (71.21%), chlorine (18.94%) and fluorine (9.85%). Singular crystals can be obtained at 1500
K by solid-state reaction between BaF
2 and BaCl
2.
[{{Cite book, last1=Chukanov, first1=Nikita V., url=https://books.google.com/books?id=GOW9CwAAQBAJ&dq=Zhangpeishanite&pg=PA348, title=Infrared Spectroscopy of Minerals and Related Compounds, last2=Chervonnyi, first2=Alexandr D., date=2016-03-09, publisher=Springer, isbn=978-3-319-25349-7, language=en]
References
Barium minerals
Chlorides
Fluorides
Tetragonal minerals