VS
Name
—
Ca₂(Al₂Mn³⁺)[Si₂O₇][SiO₄]O(OH)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
6
Mohs hardness
—
3.46–3.54
Specific gravity
—
Reddish
Streak
—
Vitreous
Luster
—
{001}, perfect; {100}, poor
Cleavage
—
P2_1/m
Space group
—
Epidote
Structural group
—
Pmt · Approved
IMA
—
1853
Named in
—
Red, Brown, Black, Yellow
Typical colors
—
Ca · Al · Mn · Si · O · H
Elements
—