Photo: John Sobolewski (JSS) · CC BY 3.0

Hydroxide mineral

Properties

Chemical formula

(Ca,Mn²⁺)₀.₂(Mn⁴⁺,Mn³⁺)O₂·0.6H₂O

Group

Oxides

Crystal system

Trigonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

4.FL.40

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Rnc

Locality

🇫🇷 Le Rancié Mine

Type locality

—

Discovery year

—

Source: Wikidata