Photo: Ferraris, C., Pignatelli, I., Cámara, F., Parodi, G., Pont, S., Schreyer, M., and Wei, F. · CC BY 4.0

Cyclosilicate mineral

Properties

Chemical formula

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Group

Silicates

Crystal system

Hexagonal

Hardness (Mohs)

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Color

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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

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Birefringence

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Pleochroism

—

Strunz classification

—

Dana classification

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IMA status

Approved mineral and/or valid name (A)

IMA symbol

Ltm

Locality

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Type locality

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Discovery year

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Source: Wikidata