IMA mineral species

Magnesiohulsite

Mg₂Fe³⁺O₂(BO₃)

Borate mineral.

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

Properties

🔷 Monoclinic✏️ streak dark brown
Chemical formulaMg₂Fe³⁺O₂(BO₃)
ElementsMg, Fe, O, B
Crystal systemMonoclinic
Mohs hardness—
Density—
Streakdark brown
Color—
IMA symbolMhul
Nickel–Strunz class6.AB.45

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