from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An isometric-hexoctahedral mineral containing fluorine, potassium, and silicon.
from The Century Dictionary and Cyclopedia
- n. A mineral containing silicon, fluorin, and potassium, obtained in isometric crystals from the aqueous solution of stalactitic concretions found at the erater of Vulcano, one of the Lipari Islands.
"Jasper, hematite and hieratite stones were strongly recommended for unusual sanative virtues, but the sapphire excelled as a remedy for scorpion bites."