IMA mineral species

Holdawayite

Mn₆(CO₃)₂(OH)₇(Cl,OH)

Carbonate mineral.

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

Properties

Chemical formulaMn₆(CO₃)₂(OH)₇(Cl,OH)
ElementsMn, C, O, H, Cl
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHdw
Nickel–Strunz class5.BA.20

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

🌍 Where it's found

Type locality (where it was first described): Kombat, Namibia

  • 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.