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

Cyclosilicate mineral

Properties

Chemical formula

K(Na,☐)₂Li₃(Fe,Mn,Al,Zr)₂[Si₁₂O₃₀]

Group

Silicates

Crystal system

Hexagonal

Hardness (Mohs)

—

Color

Brown

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.CM.05

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Sug

Locality

🇯🇵 Iwagi islet

Type locality

—

Discovery year

—

Source: Wikidata