Photo: Christian Rewitzer · CC BY-SA 3.0

Phosphate mineral

Properties

Chemical formula

NaFe³⁺₃(PO₄)₂(OH)₄ * 2H₂O

Group

Phosphates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Yellow

Luster

—

Streak

Yellow

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

8.DL.10

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Cyr

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata