Photo: David Hospital · CC BY 4.0

Interlayer-deficient mica, phyllosilicate mineral

Properties

Chemical formula

(Na,K)(Mg,Fe,Al)₆((Al,Si)₄O₁₀)₂(OH,F)₄

Group

Silicates

Crystal system

Triclinic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pinacoidal

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.EC.20

Dana classification

71.2.2b.14

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Wns

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata