Photo: Leon Hupperichs · CC BY-SA 3.0

Multiple chain inosilicate mineral

Properties

Chemical formula

NaFe²⁺Fe³⁺Si₆O₁₅

Group

Silicates

Crystal system

—

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.DN.05

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Tuh

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata