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

Tectosilicate mineral

Properties

Chemical formula

Be₃Fe²⁺₄(SiO₄)₃S

Group

Silicates

Crystal system

Cubic

Hardness (Mohs)

—

Color

Yellow

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P-43n

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FB.10

Dana classification

76.2.4.2

IMA status

Grandfathered mineral (G)

IMA symbol

Dan

Locality

🇺🇸 Rockport

Type locality

—

Discovery year

—

Source: Wikidata