Cyclosilicate mineral

Properties

Chemical formula

(Ca,K,Na)₂₋ₓ(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·4H₂O

Group

Silicates

Crystal system

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Hardness (Mohs)

—

Color

—

Luster

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Streak

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Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

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Transparency

—

Space group

—

Fluorescence

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Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.CE.30b

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Tsp-Ca

Locality

🇷🇺 Hackman valley

Type locality

—

Discovery year

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Source: Wikidata