Crossword puzzle clue "quartz rock"

Here are the possible solutions for quartz rock clue

Answer
Clue
Relevancy
agate
Clue
Rock composed of quartz
Quartz from volcanic rock
Quartz variety
Definition
a variety of quartz
geode
Clue
Quartz-filled rock
Definition
a roughly spherical stone, hollow or partially hollow, containing an accumulation of mineral matter
granite
Clue
Quartz rock
Igneous rock, generally composed of feldspar and mica and quartz
Definition
a highly felsic igneous rock
shale
Clue
Rock often containing quartz
gibraltar
Clue
The Rock of ___ (after translation, "The Rock of the Rock of Tariq")

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