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Commentary Index | Return to PrayerRequest.com | DownloadNoah Webster Dictionary (1913 edition): Quartz
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(n.) 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.