Photo: Leon Hupperichs · CC BY-SA 3.0

Mineral (as opposed to the chemical element)

Properties

Chemical formula

Se

Group

Sulfides

Crystal system

Trigonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P3₁21

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

1.CC.10

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Se

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata