VS
Name
—
Ba₆Fe³⁺₃Si₈O₂₃(CO₃)₂Cl₃·H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
4.5–5
Mohs hardness
—
4.338
Specific gravity
—
Grayish black
Streak
—
Vitreous to adamantine
Luster
—
None
Cleavage
—
P3m1
Space group
—
—
Structural group
—
Fco · Approved
IMA
—
2000
Named in
—
Jet-black to gray-brown
Typical colors
—
Ba · Fe · Si · O · C · Cl · H
Elements
—