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

Mica, potassium phyllosilicate mineral of green color (Fe-II)

Properties

Chemical formula

—

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

2

Color

Green

Luster

—

Streak

—

Density

3 g/cm³

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.EC.15

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Cel

Locality

🇩🇪 Planitz

Type locality

—

Discovery year

—

Source: Wikidata