VS
Name
—
Na₂Mg(SO₄)₂·4H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
2.5–3
Mohs hardness
—
2.22–2.24
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P2_1/a
Space group
—
Blödite
Structural group
—
Blö · Approved
IMA
—
1821
Named in
—
Colorless, may be dark gray, bluish green, or reddish from inclusions; colorless in transmitted light
Typical colors
—
Na · Mg · S · O · H
Elements
—