Mineral - Belomarinaite
Belomarinaite
Chemical Properties
Mineral Class
Sulphates
Toxicity
none
Formula
KNa(SO₄)
Unit Cell
a=5.61 c=7.18 Z=2
Physical Properties
Hardness
2 - 3
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
uneven
Tenacity
Brittle
Optical Properties
Color
whitecolorless
Birefringence
0.003
Luster
Vitreous
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
ditrigonal-pyramidal - 3m
Space Group
P31m (157)
Habit
leafy, crusty, platelet-shaped, skeletal
Formation
In volcanic fumaroles
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Belomarinaite
Composition
Elements
Mass
Na₂O
18.14
K₂O
28.68
SO₃
51.46
CuO
2.29
Russia (Filatov et al. 2019)
Name and first discovery: Named after the Russian volcanologist Marina Gennadievna Belousova (1960). First described in 2019.
Chemism:
Synonyms:
Varieties:
Abbreviation: Bmr
Literature
Filatov, S. K., Shablinskii, A. P., Vergasova, L. P., Saprikina, O. U., Bubnova, R. S., Moskaleva, S. V., & Belousov, A. B. (2019). Belomarinaite KNa (SO4): A new sulphate from 2012-2013 Tolbachik fissure eruption, Kamchatka peninsula, Russia. MineralogicalMagazine, 83(4), 569-575.