Photo: Ra'ike (see also: de:Benutzer:Ra'ike) · CC BY-SA 3.0

Sulfate mineral

Properties

Chemical formula

NH₄Al(SO₄)₂·12H₂O

Group

Sulfates

Crystal system

Cubic

Hardness (Mohs)

—

Color

Colorless

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.CC.20

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Tmi

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata