Photo: Sharygin, Victor V. and Yakovlev, Grigory A. and Wirth, Richard and Seryotkin, Yurii V. and Sokol, Ellina V. and Nigmatu... · CC BY 4.0

Silicate, perovskite mineral

Properties

Chemical formula

Ca₄Ti₂(Fe³⁺,Fe²⁺)(Si,Fe³⁺,Al)O₁₁

Group

Silicates

Crystal system

Orthorhombic

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

—

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Nkk

Locality

🇮🇱 Hatrurim Basin

Type locality

—

Discovery year

—

Source: Wikidata