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

Transitional ino-phyllosilicate mineral

Properties

Chemical formula

(Ca,Na)₂(Be,Al)[Si₂O₆(OH,F)]

Group

Silicates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.DP.05

Dana classification

55.4.2.5

IMA status

Grandfathered mineral (G)

IMA symbol

Mph

Locality

🇳🇴 Langesundsfjord

Type locality

—

Discovery year

—

Source: Wikidata