IMA mineral species

Yoderite

(MgAl₃)(MgAl)Al₂O₂(SiO₄)₄(OH)₂

Nesosilicate mineral.

Yoderite specimen — Yoderite in talc Hydrous magnesium iron aluminum silicate Mautia Hill Central Province tanzania 1938.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness6

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💅🪙🍶🔪💎

Scratches glass; quartz scratches it.

🔷 Monoclinic

Chemical formula	(MgAl₃)(MgAl)Al₂O₂(SiO₄)₄(OH)₂
Elements	Mg, Al, O, Si, H
Crystal system	Monoclinic
Mohs hardness	6
Density	—
Streak	—
Color	—
IMA symbol	Yod
Nickel–Strunz class	9.AF.25

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

Learn more

Yoderite on Mindat.org
Wikidata item Q4022803 (source of this page's data – you can correct it there)