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

Tectosilicate mineral

Properties

Chemical formula

Na₄BeAlSi₄O₁₂Cl

Group

Silicates

Crystal system

Tetragonal

Hardness (Mohs)

4

Color

White

Luster

—

Streak

—

Density

2,465 g/cm³

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

I-4

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FB.10

Dana classification

76.2.3.7

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Ttp

Locality

🇬🇱 Tunulliarfik fjord

Type locality

—

Discovery year

—

Source: Wikidata