Tectosilicate mineral

Properties

Chemical formula

(Na₆₁K₁₉Ca₃₂)(Si₈₄Al₈₄O₃₃₆)(SO₄)₂₆Cl₂F₆*₂H₂O

Group

Silicates

Crystal system

Hexagonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P-62c

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FB.05

Dana classification

76.2.5.13

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Scf

Locality

🇮🇹 Sacrofano caldera

Type locality

—

Discovery year

—

Source: Wikidata