IMA mineral species

Althausite

Mg₄(PO₄)₂(OH,O)(F,☐)

Phosphate mineral.

Althausite specimen
Althausite-Hematite-Lizardite-704015.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaMg₄(PO₄)₂(OH,O)(F,☐)
ElementsMg, P, O, H, F
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolAhs
Nickel–Strunz class8.BB.25

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

🌍 Where it's found

Type locality (where it was first described): Tingelstadtjern quarry, Norway