Tatarskite
Tatarskite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Ca₆Mg₂(SO₄)₂(CO₃)₂(OH)₄Cl₄·7H₂O.
Key properties: Mohs hardness 2.5; specific gravity 2.341; Vitreous, pearly on cleavages luster; optically biaxial.
IMA symbol Tts, IMA status: approved, named in 1963.
A rare secondary mineral found in drill core in a marine salt deposit.
It is found associated with Anhydrite, halite, bischofite, magnesite, hilgardite.
The mineral was named to honor Professor Vitalii Borisovich Tatarskii (1907–1993), mineralogist, St. Petersburg University, St. Petersburg, Russia.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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