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Chalcedony Sample


Chalcedony


Chemical Composition: SiO2
Group: -
System: Hexagonal
Family: Oxides
Hardness: 7


  • Type of quartz
  • Waxy luster
  • Never crystalline
  • Light-transparent to translucent
  • Other colours: white-yellow, brown or green
  • Found in: Canada, Czech Republic, Kazakhstan, Slovakia, Sri Lanka, Uruguay, Zambia



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