Crystopedia
IMA mineral species

Whitlockite

Ca₉Mg(PO₄)₆(PO₃OH)

Phosphate mineral.

YellowPinkGrayWhite & Clear

Whitlockite specimen
Whitlockite-5b-whitlockite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₉Mg(PO₄)₆(PO₃OH)
ElementsCa, Mg, P, O, H
Crystal systemTrigonal
Mohs hardness5
Density—
Streakwhite
Color—
IMA symbolWht
Nickel–Strunz class8.AC.45

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

🌍 Where it's found

Type locality (where it was first described): Palermo No. 1 mine, 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.

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