Hydrous calcium germanium sulfate-carbonate hydroxyl mineral

Properties

Chemical formula

Ca₃(SO₄)[Ge(OH)₆](CO₃) * 12H₂O

Group

Carbonates

Crystal system

Hexagonal

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P6₃/m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.DG.15

Dana classification

32.4.4.6

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Cra

Locality

🇮🇹 Massa

Type locality

—

Discovery year

—

Source: Wikidata