WordReference Random House Unabridged Dictionary of American English © 2025
jar•o•site
( jar′ə sīt′, jə rō′sīt),USA pronunciation n.
- Mineralogya yellowish or brownish mineral, a hydrous sulfate of potassium and iron, KFe3(SO4)2(OH)6, occurring in small crystals or large masses.
- 1850–55; named after Barranco Jaroso (in Almería, Spain); see -ite1