Photo: Robert M. Lavinsky · CC BY-SA 3.0

Inosilicate mineral

Properties

Chemical formula

NaMn²⁺₂Si₃O₈(OH)

Group

Silicates

Crystal system

Triclinic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pedial

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.DG.05

Dana classification

—

IMA status

Renamed mineral (Rn)

IMA symbol

Srd

Locality

🇬🇳 Rouma Island

Type locality

—

Discovery year

—

Source: Wikidata