Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic. Chalcedony's standard chemical structure (based on the chemical structure of quartz) is SiO2 (silicon dioxide). WebNov 20, 2024 · chalcedony (n.) chalcedony. (n.) semi-precious stone, a cloudy white variety of quartz, c. 1300, from Latin calcedonius, a Vulgate rendering of Greek khalkēdōn in Revelation xxi.19; found nowhere else. "The word is of very complicated history" [OED]. …
Chalcedony: Meanings, Properties and Powers - The …
WebFree online talking dictionary with handwriting recognition, fuzzy pinyin matches, word decomposition, stroke order, character etymology, etc. Webchalcedony /kælˈsɛdənɪ/ n ( pl -nies) a microcrystalline often greyish form of quartz with crystals arranged in parallel fibres: a gemstone. Formula: SiO2 Etymology: 15th Century: from Late Latin chalcēdōnius, from Greek khalkēdōn a precious stone (Revelation 21:19), perhaps named after Khalkēdōn Chalcedon, town in Asia Minor thesaurus vigilance
Chalcedonyx Definition & Meaning - Merriam-Webster
WebJan 3, 1993 · Chalcedony is a type of α-quartz consisting of microcrystalline fibers that are polysynthetically twinned according to the Brazil law (Miehe et al. 1984;Cady et al. 1998; Heaney 1993). … WebApr 30, 2024 · The name Chalcedony is derived from the ancient Byzantine port city of Chalcedon, known today as Kadikoy in Turkey. Notable Chalcedony occurrences are in the USA, Russia, Namibia, India, New … Weba light green translucent variety of chalcedony Etymology: 14th Century: from French, from Latin prasius a leek-green stone, from Greek prasios, from prason a leek 'prase' also … thesaurus vigilante