Inosilicate mineral

Properties

Chemical formula

(K,Na)₄(Fe,Mn)₂(Si₄O₁₀)₂(OH,F)

Group

Silicates

Crystal system

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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.DG.70

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Fnk

Locality

🇷🇺 Material'naya adit

Type locality

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Discovery year

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Source: Wikidata