bn:00014660n
Noun Concept
Categories: Lithics, Trigonal minerals, Chalcedony
EN
chalcedony  calcedony
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EN
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. Wikipedia
Microcrystalline varieties of silica, may contain moganite as well Wikidata
A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally. Wiktionary
Form of fine-grained quartz. Wiktionary (translation)
WordNet 3.0 & WordNet 2020
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