bn:00065612n
Noun Concept
Categories: Minerals in space group 180 or 181, Quartz varieties, long volume value, Luminescent minerals, All Wikipedia articles written in American English
EN
quartz  Blue Quartz  Star Blue Quartz  Asdivite  Bristol stone
EN
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 WordNet 3.0
English:
mineral
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