Photo: Miguel Calvo · CC BY 4.0

Phyllosilicate mineral

Properties

Chemical formula

Mn²⁺₈Si₆O₁₅(OH,Cl)₁₀

Group

Silicates

Crystal system

Monoclinic

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

9.EE.10

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Fdl

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata