IMA mineral species

Jahnsite-(CaMnMn)

CaMn²⁺Mn²⁺₂Fe³⁺₂(PO₄)₄(OH)₂(H₂O)₈

Phosphate mineral.

Jahnsite-(CaMnMn) specimen
Jahnsite-(CaMnMn).jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCaMn²⁺Mn²⁺₂Fe³⁺₂(PO₄)₄(OH)₂(H₂O)₈
ElementsCa, Mn, Fe, P, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolJah-CaMnMn
Nickel–Strunz class8.DH.15

“—” means no reliable value in Wikidata yet. Check Mindat for full data.