Strong's #4715: mitsreph (pronounced mits-rafe')
from 6884; a crucible:--fining pot.
Brown-Driver-Briggs Hebrew Lexicon:
mitsrêph
1) crucible
Part of Speech: noun masculine
Relation: from H6884
Usage:
This word is used 2 times:
Proverbs 17:3: " The refining pot is for silver, and the furnace for gold: but the LORD trieth the hearts."
Proverbs 27:21: " As the refining pot for silver, and the furnace for gold; so is a man to his praise."