VS
Name
—
K₈(Fe³⁺₀.₆₇ ₀.₃₃)[Fe³⁺₃O(SO₄)₆(H₂O)₃]₂(H₂O)₁₁
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
2–2.5
Mohs hardness
—
2.432
Specific gravity
—
Yellowish
Streak
—
Vitreous
Luster
—
Perfect on {0001}
Cleavage
—
R-3
Space group
—
Metavoltine
Structural group
—
Sda · Approved
IMA
—
2019
Named in
—
Yellowish to brownish
Typical colors
—
K · Fe · O · S · H
Elements
—