VS
Name
—
Ca₂Mn²⁺Al₂(Si₂O₇)(SiO₄)(OH)₂·H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
5
Mohs hardness
—
3.34
Specific gravity
—
Light grayish pink
Streak
—
Vitreous
Luster
—
One perfect, presumably {001}, seen in thin section
Cleavage
—
A2/m
Space group
—
Pumpellyite
Structural group
—
Pmp-Mn2+ · Approved
IMA
—
1980
Named in
—
Light grayish pink to brownish pink
Typical colors
—
Ca · Mn · Al · Si · O · H
Elements
—