A type of light bulb consisting of a quartz bulb and a tungsten filament and the bulb containing iodine, operating at a high temperature and producing an intense light.

plural of quartz-iodine lamp

(mineralogy) A metamorphic rock from sandstone, consisting of interlocking grains of quartz.

Of, relating to, or containing quartzite.

(mineralogy) A fibrous form of silica similar to chalcedony.

plural of quartzine

(mineralogy) Lacking quartz.

Resembling or containing quartz.

superlative form of quartzy: most quartzy

comparative form of quartzy: more quartzy