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Mineral A

VS

Mineral B

J

Jahnsite-(MnMnFe)

Name

—

Mn²⁺Mn²⁺Fe²⁺₂Fe³⁺₂(PO₄)₄(OH)₂·8H₂O

Formula

—

Mineral Species

Entry type

—

Phosphates

Chemical class

—

Monoclinic

Crystal system

—

4

Mohs hardness

—

2.654

Specific gravity

—

Pale greenish brown

Streak

—

Vitreous

Luster

—

Perfect on {001}

Cleavage

—

P2/a

Space group

—

Jahnsite

Structural group

—

Jah-MnMnFe · Approved

IMA

—

2018

Named in

—

Dark orange-brown

Typical colors

—

Mn · Fe · P · O · H

Elements

—