QUARTZ
\kwˈɔːts], \kwˈɔːts], \k_w_ˈɔː_t_s]\
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A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.
By Oddity Software
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A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.
By Noah Webster.
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A hard mineral composed of pure silica; the most common of solid minerals, found in many kinds of rock, often in the form of crystals.
By William Dodge Lewis, Edgar Arthur Singer
By James Champlin Fernald
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.