Photo: Didier Descouens · CC BY-SA 3.0

Sulfate mineral

Properties

Chemical formula

Ca₆Al₂(SO₄)₂B(OH)₄(OH,O)₁₂·26H₂O

Group

Sulfates

Crystal system

Trigonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.DG.15

Dana classification

32.4.4.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Chrl

Locality

🇺🇸 Franklin

Type locality

—

Discovery year

—

Source: Wikidata