SEMIPRECIOUS VARIETY OF AGATE Crossword Clue
SEMIPRECIOUS VARIETY OF AGATE Crossword Clue
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Crossword Puzzle Infos
Onyx is a semiprecious variety of agate, a type of quartz. It is characterized by its black and white banded appearance, which is caused by the presence of iron and magnesium in the stone. ONYX is often used in jewelry and other decorative items.