Photo: David Hospital · CC BY-SA 4.0

Sulfate mineral

Properties

Chemical formula

(NH₄)Al(SO₄)₂

Group

Sulfates

Crystal system

Trigonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.AC.20

Dana classification

28.3.5.2

IMA status

Approved mineral and/or valid name (A)

IMA symbol

God

Locality

🇷🇺 Kopeysk

Type locality

—

Discovery year

—

Source: Wikidata