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Sulfate mineral

Properties

Chemical formula

Fe³⁺₁₆(OH,SO₄)₁₂-₁₃O₁₆ * 10-₁₂H₂O

Group

Sulfates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Brown

Luster

—

Streak

Yellow

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.DE.15

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Swm

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata