Call number:
E8
Classification:
Framework Silicates (Silica Minerals)
Name:
Χαλκηδόνιος
Translated title:
Chalcedony
Place of origin:
Petzofas / Lesbos isl., Greece
Depositional environment:
Hydrothermally altered volcanic rocks
Description:
Blue chalcedony filling vug cavities in volcanic host rock. In this area chalcedony appears in stalactitic forms within gas vacuoles in perlitic rocks. Usually chalcedony is transformed into crystalline quartz.
Chemical formula:
SiO2
Crystal system:
Trigonal
Persistent URL:
