Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

Mineral B

Hydroniumjarosite

Name

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(H₃O)Fe³⁺₃(SO₄)₂(OH)₆

Formula

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Mineral Species

Entry type

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Sulfates

Chemical class

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Hexagonal

Crystal system

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4–4.5

Mohs hardness

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2.5–2.9

Specific gravity

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Streak

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Dull to resinous

Luster

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[On {0001}, distinct.] (by analogy to jarosite)

Cleavage

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R-3m

Space group

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Alunite-Alunite

Structural group

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Hjrs · Approved

IMA

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1960

Named in

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Bright yellow to pale yellow

Typical colors

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H · O · Fe · S

Elements

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