IMA mineral species

Stanfieldite

Ca₄Mg₅(PO₄)₆

Phosphate mineral.

Stanfieldite specimen
Stanfieldite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₄Mg₅(PO₄)₆
ElementsCa, Mg, P, O
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolStf
Nickel–Strunz class8.AC.70

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

🌍 Where it's found

Type locality (where it was first described): Estherville, United States

  • 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.