baratovite
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Baratovite is a very rare cyclosilicate mineral named after Rauf Baratovich Baratov from Tajikistan. It was discovered in 1974 at Dara-Pioz glacier, Tajikistan, and was approved by the International Mineralogical Association only a year later in 1975. The glacier gives home to 133 valid species, and is the type locality of 33 minerals, one of which is baratovite.
~3 min read
Encyclopedic overview
3 sectionsContents
- Properties
- Occurrences
- References
{{Infobox mineral |boxbgcolor=#cccccc|formula=KCa7(Ti,Zr)2Li3Si12O36F2 |IMAsymbol=Btv |image=Baratovite-266512.jpg |strunz=9.CJ.25 |system=Monoclinic |dana=61.1.4.2 |class=Prismatic H-M symbol: 2/m |symmetry=C2/c|unit cell=3,185.91 |color=White, colorless, pink |twinning=Common on {001} |cleavage=Perfect on {001} |fracture=Conchoidal |tenacity=Brittle |mohs=5 - 6 |luster=Vitreous, pearly |opticalprop=Biaxial (+) |refractive=nα = 1.674 nβ = 1.671 nγ = 1.666 |birefringence=0.008 |2V=60° |dispersion=Strong r > v|streak=White|gravity=2.92|density=2.92|impurities=Fe, Nb, Mn, Na|other=25px Radioactive }}
Baratovite is a very rare cyclosilicate mineral named after Rauf Baratovich Baratov from Tajikistan. It was discovered in 1974 at Dara-Pioz glacier, Tajikistan, and was approved by the International Mineralogical Association only a year later in 1975. The glacier gives home to 133 valid species, and is the type locality of 33 minerals, one of which is baratovite.
Excerpted from Wikipedia’s “baratovite” article, available under the CC BY-SA 4.0 licence.