Crossword puzzle clue "impure form of quartz used as a gemstone"

Here are the possible solutions for impure form of quartz used as a gemstone clue

Answer
Clue
Relevancy
agate
Clue
Impure form of quartz, used as a gemstone
Impure form of quartz
Form of quartz
Definition
a variety of quartz
agates
Clue
Pieces of impure quartz used as gemstones
Definition
AGATE, a variety of quartz
smokytopaz
Clue
Dark brown quartz sometimes sold as a gemstone
zircon
Clue
Mineral used as a gemstone in its transparent form
agatine
Clue
Resembling a form of quartz.
jasper
Clue
Opaque form of quartz
Definition
a red variety of chert, its color coming from minute particles of included hematite, also JASP, JASPIS

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