Mineral - Kilchoanite
Kilchoanite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Ca₆(SiO₄)(Si₃O₁₀)
Unit Cell
a=11,42 b=5,09 c=21,95 Z=8
Physical Properties
Hardness
6 - 6.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
uneven
Tenacity
Optical Properties
Color
whitecolorless
Birefringence
0,004
Luster
Vitreous
Transparency
translucent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
coarse, granular, massive, prismatic
Formation
Metamorphose durch Gabbro-Intrusionen in Kalksteine
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Kilchoanite
Composition
Elements
Mass
SiO₂
39,62
CaO
58,43
MgO
0,05
MnO
0,08
FeO
0,18
Russland