Dashkovaite
Dashkovaite is an IMA-recognized mineral species in the organic mineral class, with the chemical formula Mg(HCOO)₂·2H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/c). It is a member of the Formate structural group.
Key properties: Mohs hardness 1; specific gravity 1.74; Vitreous luster; optically biaxial.
IMA symbol Dkv, IMA status: approved, named in 2000.
Rare, in hydrothermal veinlets in serpentine in dolomite marble.
It is found associated with Shabynite, iowaite, ekaterinite, korshunovskite, halite, hydromagnesite.
The mineral was named to honor Ekaterina Romanova Dashkova (1744–1810), Director of the St. Petersburg Academy of Sciences and President of the Russian Academy of Sciences.
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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