Vi fant 2 definisjoner av rock crystal på engelsk.
Noun |
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| rock crystal - a clear quartz used in making electronic and optical equipment | ||
| transparent quartz | ||
| quartz a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities | ||
Substantiv |
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| rock crystal - clear, colourless form of the silica-based mineral quartz, often called "pure quartz" or "clear quartz". |