noun
hot-spring mineral deposits; flowers of sulphur; geyserite; sinter
Refers to the solid mineral precipitates that form around hot springs, often with a flower-like appearance. Can specifically denote sulphur deposits (flowers of sulphur) or siliceous sinter (geyserite).
温泉の湯口には湯の花がこびりついていた。
Hot-spring mineral deposits had built up around the spout.
湯の花
The flowers of sulphur are yellow crystals and are beautiful.
Compound of 湯 (hot water) + の (possessive particle) + 花 (flower), literally 'flowers of hot water', describing the flower-like mineral formations at hot springs.