Photo: Lodewicus de Honsvels · CC BY-SA 4.0

Inosilicate mineral

Properties

Chemical formula

Ca₄Si₆O₁₇(H₂O)₂·(Ca·3H₂O

Group

Silicates

Crystal system

Orthorhombic

Hardness (Mohs)

—

Color

White

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.DG.10

Dana classification

—

IMA status

Redefined mineral (Rd)

IMA symbol

Tbm

Locality

🇬🇧 Tobermory

Type locality

—

Discovery year

—

Source: Wikidata