IMA mineral species

Keckite

CaMn(Fe³⁺,Mn)₂Fe³⁺₂(PO₄)₄(OH)₃(H₂O)₇

Phosphate mineral.

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

Properties

Chemical formulaCaMn(Fe³⁺,Mn)₂Fe³⁺₂(PO₄)₄(OH)₃(H₂O)₇
ElementsCa, Mn, Fe, P, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolKec
Nickel–Strunz class8.DH.15

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

🌍 Where it's found

Type locality (where it was first described): Cornelia shaft, Hagendorf South open cut, Germany

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.