VS
Name
—
Ba₂₁Ca(Fe²⁺,Mn,Ti)₄(Ti,Fe,Mg)₁₂(Si₁₂O₃₆)(Si₂O₇)₆(O,OH)₃₀Cl₆·14H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
5
Mohs hardness
—
3.71
Specific gravity
—
Pale reddish brown
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P-6m2
Space group
—
—
Structural group
—
Tsk · Approved
IMA
—
1964
Named in
—
Brownish red
Typical colors
—
Ba · Ca · Fe · Mn · Ti · Mg · Si · O · H · Cl
Elements
—