Photo: Kampf, A. R., Möhn, G., Ma, C., Rossman, G. R., Désor, J., and Guan, Y. · CC BY 4.0

Properties

Chemical formula

KNa₂Fe²⁺(Fe²⁺)₂(Ti₁.₅Fe²⁺₀.₅)[Si₄O₁₂]₂

Group

Oxides

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

15

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

—

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Rkp

Locality

🇩🇪 Rother Kopf

Type locality

—

Discovery year

—

Source: Wikidata