In the Bronze Age chalcedony was in use in the Mediterranean region; for example, on Minoan Crete at the Palace of Knossos, chalcedony seals have been recovered dating to circa 1800 BC.

chalcedony of

Bronze Age

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Wikipedia contributors. (2023, September 27). Chalcedony. In Wikipedia, The Free Encyclopedia. Retrieved November 2, 2023, from https://en.wikipedia.org/w/index.php?title=Chalcedony&oldid=1177486095

history of

chalcedony

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https://github.com/davepinch/pinchy.cc/blob/master/content/topics/geology/minerals/chalcedony/history/snippet-history-2-1.md

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Ether how can a ma enter into a stroge manes housse and violently take awaye his goodes: excepte he fyrst binde ye stroge man and the spoyle his housse? Matthew 12:29 TYN

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Chalcedony (Wikipedia) Chalcedony (/kælˈsɛdəni/ kal-SED-ə-nee, or /ˈkælsəˌdoʊni/ KAL-sə-doh-nee) 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).

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Mediterranean
Minoan Crete
Palace of Knossos
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