The Result of a Metamorphosed Sandstone

This page is the CodyCross answer for the clue below from Germany, Group 2200, Puzzle 4 (Printing Press).

Question is: The Result of a Metamorphosed Sandstone

and the answer is: QUARTZITE

Word Meaning:

QUARTZITE — (mineralogy) A metamorphic rock from sandstone, consisting of interlocking grains of quartz.

Definitions from Wiktionary.