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VS
Å
Name
—
Mn²⁺Nd(Al₂Fe³⁺)[Si₂O₇][SiO₄]O₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
6
Mohs hardness
—
3.737
Specific gravity
—
Brown
Streak
—
Resinous
Luster
—
None
Cleavage
—
P2_1/m
Space group
—
Epidote
Structural group
—
Åsk-Nd · Approved
IMA
—
2009
Named in
—
Black, brown in thin fragments
Typical colors
—
Mn · Nd · Al · Fe · Si · O
Elements
—