| NOUN | substance | transparent quartz, rock crystal | a clear quartz used in making electronic and optical equipment |
|---|
| Meaning | A clear quartz used in making electronic and optical equipment. | |
|---|---|---|
| Synonym | rock crystal | |
| Narrower | rhinestone | An imitation diamond made from rock crystal or glass or paste |
| Broader | quartz | A hard glossy mineral consisting of silicon dioxide in crystal form |
| Spanish | cristal de roca, cuarzo hialino, cuarzo transparente | |
| Catalan | cristall de roca, quars hialí | |
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