Answer: sinter

AnswerCrossword Clue
SINTERMineral deposit found in hot springs
SINTERDross of iron.
SINTERCrust formed by mineral springs.
SINTERDeposit of silica from a geyser.
SINTERGeyser deposit
SINTERGeological deposit from a mineral spring
sinterthe product of a sintering operation
sinterto bring about agglomeration in (metal particles) by heating
sintersiliceous or calcareous matter deposited by springs, as that formed around the vent of a geyser
sinterto make cohesive by heat and pressure