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VS
Jôkokuite
Name
—
Mn²⁺(SO₄)·5H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Triclinic
Crystal system
—
2.5
Mohs hardness
—
2.03
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P-1
Space group
—
Chalcanthite
Structural group
—
Jôk · Approved
IMA
—
1976
Named in
—
Pale pink; colorless in thin section
Typical colors
—
Mn · S · O · H
Elements
—