VS
Name
—
(NH₄)₂(SO₄)
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Orthorhombic
Crystal system
—
2–2.5
Mohs hardness
—
1.768
Specific gravity
—
—
Streak
—
Vitreous to dull
Luster
—
{100}, good
Cleavage
—
Pnam
Space group
—
Arcanite
Structural group
—
Msc · Grandfathered
IMA
—
1800
Named in
—
Colorless, white, may be tinged gray, yellowish gray, lemon-yellow; colorless in transmitted light
Typical colors
—
N · H · S · O
Elements
—