Vanado-silicate mineral

Properties

Chemical formula

(Mn,Mg)₂₂.₅Mg₃-₃x((V₅+,As₅+)O₄)₃(As³⁺O₃)x(SiO₄)₃O₅-₅x(OH)₂₀+x

Group

Silicates

Crystal system

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Hardness (Mohs)

—

Color

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Luster

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Streak

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Density

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Cleavage

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Fracture

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Tenacity

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Crystal habit

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Transparency

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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

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Strunz classification

8.BE.45

Dana classification

43.4.9.2

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Tt

Locality

🇨🇭 Turtmanntal

Type locality

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Discovery year

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Source: Wikidata