OPAQUE GEM Crossword Clue

The most common solution for the crossword clue "OPAQUE GEM" are OPAL with 4 letters.
We know 2 solutions for: OPAQUE GEM
Crossword Puzzle Infos
The term 'opaque gem' refers to two different types of gems: OPAL and JASPER. OPAL is a hydrated amorphous form of silica, which is characterized by its milky iridescence and play of colors. JASPER is an opaque, impure variety of quartz that can be found in a variety of colors, including red, yellow, brown, green, and blue. Both OPAL and JASPER are popularly used in jewelry and other decorative items.
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