Photo: DGPC/ADF Luísa Oliveira · CC0

Allotrope of carbon often used as a gemstone and an abrasive

Properties

Chemical formula

C

Group

Elements

Crystal system

Cubic

Hardness (Mohs)

10

Color

Yellow

Luster

—

Streak

White

Density

3,51 g/cm³

Cleavage

—

Fracture

Conchoidal

Tenacity

—

Crystal habit

—

Transparency

—

Space group

Fd-3m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

1.CB.10a

Dana classification

1.3.6.1

IMA status

Grandfathered mineral (G)

IMA symbol

Dia

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata