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VS
Humberstonite
Name
—
K₃Na₇Mg₂(SO₄)₆(NO₃)₂·6H₂O
Formula
—
Mineral Species
Entry type
—
Nitrates
Chemical class
—
Hexagonal
Crystal system
—
2.5
Mohs hardness
—
2.252
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
Perfect on {0001}
Cleavage
—
R-3
Space group
—
—
Structural group
—
Hbe · Approved
IMA
—
1967
Named in
—
Colorless
Typical colors
—
K · Na · Mg · S · O · N · H
Elements
—