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Mineral A

VS

Mineral B

J

Jahnsite-(CaFeMg)

Name

—

CaFe²⁺Mg₂Fe³⁺₂(PO₄)₄(OH)₂·8H₂O

Formula

—

Mineral Species

Entry type

—

Phosphates

Chemical class

—

Monoclinic

Crystal system

—

4

Mohs hardness

—

2.76

Specific gravity

—

White

Streak

—

Vitreous

Luster

—

Good on {001}

Cleavage

—

P2/a

Space group

—

Jahnsite

Structural group

—

Jah-CaFeMg · Approved

IMA

—

2013

Named in

—

Brownish orange

Typical colors

—

Ca · Fe · Mg · P · O · H

Elements

—