IMA mineral species

Hydrohalloysite

Al₂Si₂O₅(OH)₄·2H₂O

Phyllosilicate mineral.

Hydrohalloysite specimen
Mineraly.sk - halloyzit.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaAl₂Si₂O₅(OH)₄·2H₂O
ElementsAl, Si, O, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHhly

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

🌍 Where it's found

Type locality (where it was first described): Angleur, Belgium

  • 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.