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Minerals - Rasvumite | TerraCollect
Mineral - Rasvumite
Rasvumite
KFe₂S₃
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
KFe₂S₃
Unit Cell
a=9,05 b=11,02 c=5,43 Z=4
Physical Properties
Hardness
4 - 5
Streak
Density
Normal (2-3,5)
Optical Properties
Color
brown
gray
red
orange
silver
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
Composition
Elements
Mass
K
16,30
Fe
45,20
S
38,00
Russland
Cleavage
Vollkommen auf (110)
Fracture
Tenacity
orthorhombic
Point Group
Space Group
Habit
lath-shaped,
acicular,
prismatic,
prismatic,
tabular
Formation
Sekundär aus Pyrrhotin, in magmatischen, alkalischen Gesteinen
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Rasvumite
