Orthoquartzite
//ˌɔːθəʊˈkwɔːtˌsaɪt// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A very pure quartz sandstone composed of usually well rounded quartz grains cemented by silica. countable, uncountable
"The contact with the Fountain is sharply defined, since they consist essentially of fine-grained red or pink to white sandstone, at time cemented to an orthoquartzite—a process still continuing."
Example
More examples"The contact with the Fountain is sharply defined, since they consist essentially of fine-grained red or pink to white sandstone, at time cemented to an orthoquartzite—a process still continuing."
Etymology
From ortho- + quartzite.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.