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Dmitryivanovite

Oxide mineral

Field	Value
name	Dmitryivanovite
category	Oxide mineral
formula	CaAl2O4
IMAsymbol	Div
strunz	4.BC.10
system	Monoclinic
class	Prismatic (2/m)
symmetry	P21/c
unit cell	a = 7.95, b = 8.62
c = 10.25 [Å]; β = 93.1°; Z = 12
color	Colorless
habit	Phase in CAI of 470 (NWA470) CH3 chondrite as subhedral grains
references

c = 10.25 [Å]; β = 93.1°; Z = 12

Dmitryivanovite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4. It was reported in 2009 in a calcium-aluminium-rich inclusion in the carbonaceous chondrite meteorite 470 (NWA470) CH3, which landed in North Africa. The mineral name was chosen to honor Dmitriy A. Ivanov (1962–1986), a geologist, mineralogist, and petrologist who died on a field expedition.

It is the high-pressure CaAl2O4 dimorph of krotite.

References

Warr, L.N.. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine.
[http://webmineral.com/data/Dmitryivanovite.shtml Webmineral data]
[http://www.mindat.org/min-30909.html Mindat.org]
(2009). "Dmitryivanovite: A new high-pressure calcium aluminum oxide from the Northwest Africa 470 CH3 chondrite characterized using electron backscatter diffraction analysis". American Mineralogist.
"New minerals approved by the IMA-CNMNC in September 2010".
(2010). "Structures of Extraterrestrial Minerals Revealed by EBSD". Microscopy and Microanalysis.
(1957). "Crystal Structure of Calcium Monoaluminate". Nature.

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calcium-minerals aluminium-minerals oxide-minerals meteorite-minerals monoclinic-minerals minerals-in-space-group-14

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