The Worthless Rock That Surrounds Ores and Stones
This page is the CodyCross answer for the clue below from Hobbies, Group 1412, Puzzle 4 (Car Restoration).
Question is: The Worthless Rock That Surrounds Ores and Stones
and the answer is: GANGUE
Word Meaning:
GANGUE — (mining) The earthy waste substances occurring in metallic ore.
Definitions from Wiktionary.