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Minerals - Diopside | TerraCollect
Mineral - Diopside
Diopside
CaMg [Si₂O₆]
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
CaMg [Si₂O₆]
Unit Cell
a=9.75 b=8.90 c=5.25 β=106° Z=4
Physical Properties
Hardness
5.5 - 6
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
yellow
green
Birefringence
0.030
Luster
Vitreous,
Greasy
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Composition
Elements
Mass
SiOâ‚‚
54.66
Al₂O₃
0.07
Fe₂O₃
0.68
FeO
0.07
MnO
0.02
MgO
18.78
CaO
25.85
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Distinct after {110}
Fracture
conchoidal,
uneven
Tenacity
Brittle
Point Group
monoclinic-prismatic - 2/m
Space Group
C2/c (15)
Habit
lamellar,
massive,
prismatic
Formation
Magmatic
Paragenesis
Twinning
Rarity
Common
Synonyms
Diopside
Hâ‚‚O
0.22
Finland (Dana 1892)
Groups and Members
Pyroxene-Group
Clinopyroxene-Subgroup
