VS
Name
—
CaLaFe³⁺AlMn²⁺(Si₂O₇)(SiO₄)O(OH)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
6.5
Mohs hardness
—
4.22
Specific gravity
—
Brown
Streak
—
Vitreous
Luster
—
Imperfect on {001}
Cleavage
—
P2_1/m
Space group
—
Epidote
Structural group
—
Fak-La · Approved
IMA
—
2013
Named in
—
Dark brown to black, gray in reflected light
Typical colors
—
Ca · La · Fe · Al · Mn · Si · O · H
Elements
—