Photo: Geni · CC BY-SA 4.0

Phyllosilicate mineral

Properties

Chemical formula

Ca₂ThSi₈O₂₀

Group

Silicates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Green

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

I422

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.EA.10

Dana classification

72.1.1.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Ek

Locality

🇱🇰 Ratnapura

Type locality

—

Discovery year

—

Source: Wikidata