Photo: Sharygin, V.V.; Ripp, G.S.; Yakovlev, G.A.; Seryotkin, Y.V.; Karmanov, N.S.; Izbrodin, I.A.; Grokhovsky, V.I.; Khromova,... · CC BY 4.0

Spinel, sulfide mineral

Properties

Chemical formula

ZnCr₂S₄

Group

Sulfides

Crystal system

Cubic

Hardness (Mohs)

—

Color

Black

Luster

—

Streak

Black

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

Fd-3m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

2.DA.05

Dana classification

2.10.1.13

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Kal

Locality

🇷🇺 Pereval marble quarry

Type locality

—

Discovery year

—

Source: Wikidata