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

Heptahydrated iron(II) sulfate

Properties

Chemical formula

Fe²⁺SO₄·7H₂O

Group

Sulfates

Crystal system

Monoclinic

Hardness (Mohs)

2

Color

Green

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.CB.35

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Mln

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata