VS
Name
—
Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
6–7
Mohs hardness
—
3.55
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
None observed
Cleavage
—
Pnmm
Space group
—
Ardennite
Structural group
—
Ard-V · Approved
IMA
—
2005
Named in
—
Yellow
Typical colors
—
Mn · Al · Mg · V · O · Si · H
Elements
—