Strong’s Hebrew
H4715 — mitsreph
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
מִצְרֵף
mitsreph — pronounced mits-rafe
from 6884; a crucible:--fining pot. see H06884
2 occurrences in the KJV.
Proverbs 17:3
The fining pot is for silver, and the furnace for gold: but the LORD trieth the hearts.
Proverbs 27:21
As the fining pot for silver, and the furnace for gold; so is a man to his praise.