IMA mineral species

Yoshiokaite

Ca₁₋ₓ(Al,Si)₂O₄

Tectosilicate mineral.

White & Clear

Yoshiokaite specimen
Yoshikawaite on serpentine Hydrous basic magnesium carbonate Yoshikawa - Shinoshira shi - Aichi Prefecture Japan 1940.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₁₋ₓ(Al,Si)₂O₄
ElementsCa, Al, Si, O
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolYos
Nickel–Strunz class9.FA.05

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