Mineral - Nesquehonite
Nesquehonite
Chemical Properties
Mineral Class
Carbonates
Toxicity
none
Formula
MgCO₃ · 3H₂O
Unit Cell
a=7,71 b=5,37 c=12,12 β=91° Z=4
Physical Properties
Hardness
2.5
Streak
white
Density
Light (<2)
Cleavage
perfekt nach {101}
Fracture
fibrous,
splintery
Tenacity
Brittle
Optical Properties
Color
whitecolorless
Birefringence
0,114
Luster
Vitreous,
Greasy
Transparency
translucent,
transparent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
spherical, acicular, prismatic, radial
Formation
Ausblühungen in Kohlebergwerken, in der Nähe von Quellen
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Nesquehonite
Composition
Elements
Mass
CO₂
30,2
MgO
29,2
H₂O
40,3
Pennsylvania