Photo: Robert M. Lavinsky · CC BY-SA 3.0

Sulfate mineral

Properties

Chemical formula

Cu₄Al₂SO₄(OH)₁₂·2H₂O

Group

Sulfates

Crystal system

Orthorhombic

Hardness (Mohs)

2

Color

Blue

Luster

—

Streak

Light blue

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.DE.10

Dana classification

31.2.1.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Cya

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata