VS
Name
—
(Mg,Fe,Ca)₂Si₂O₆
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
6
Mohs hardness
—
3.17–3.46
Specific gravity
—
white
Streak
—
[Vitreous.]
Luster
—
Good on {110}, (110) ^ (110) ~87°; partings on {100}, {010}, and {001}
Cleavage
—
P2_1/c
Space group
—
Pyroxene
Structural group
—
Pgt · Approved
IMA
—
1900
Named in
—
Brown, Green, Black
Typical colors
—
Mg · Fe · Ca · Si · O
Elements
—