Photo: Aram Dulyan (User:Aramgutang) · Public domain

Manganese dioxide mineral

Properties

Chemical formula

MnO₂

Group

Oxides

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Black

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P4₂/mnm

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

4.DB.05

Dana classification

4.4.1.4

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Pyl

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata