Photo: Robert M. Lavinsky · CC BY-SA 3.0

Nesosilicate mineral

Properties

Chemical formula

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Group

Silicates

Crystal system

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Hardness (Mohs)

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Color

Red

Luster

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Streak

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Density

—

Cleavage

—

Fracture

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Tenacity

—

Crystal habit

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Transparency

—

Space group

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Fluorescence

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Magnetism

—

Radioactivity

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Refractive index

—

Optical character

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Birefringence

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Pleochroism

—

Strunz classification

9.AH.25

Dana classification

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IMA status

Redefined mineral (Rd)

IMA symbol

Fel

Locality

🇷🇺 Kopeysk

Type locality

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Discovery year

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Source: Wikidata