IMA mineral species

Montroydite

HgO

Mercury(II) oxide mineral, HgO.

RedBrown

Montroydite specimen
Montroydite-mf17a.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2.5
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💅🪙🍶🔪💎

Scratches with a fingernail.

⚖ Density10.77 g/cm³
Very heavy
Chemical formulaHgO
ElementsHg, O
Crystal system—
Mohs hardness2.5
Density10.77 g/cm³
Streak—
Color—
IMA symbolMtyd
Nickel–Strunz class4.AC.15

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

🌍 Where it's found

Type locality (where it was first described): Terlingua district, United States