Angaben zum Begriff
Bevorzugte Bezeichnung
Chalzedon
Definition
- A very fine-grained (cryptocrystalline) variety of the silica mineral quartz. A form of chert, it occurs in concretionary, mammillated, or stalactitic forms of waxy lustre and has a compact fibrous structure, a fine splintery fracture.
Oberbegriff
Quelle
- https://www.britannica.com/topic/chalcedony
Bearbeitungshinweis
- 5.4
In anderen Sprachen
-
Englisch
URI
https://vocabs.acdh.oeaw.ac.at/defcthesaurus/chalcedony/3.13
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