Call number:
E9
Classification:
Oxides
Framework Silicates (Silica Minerals)
Framework Silicates (Silica Minerals)
Name:
Χαλαζίας
Translated title:
Quartz
Place of origin:
Penteli Mountain/Attica, Greece
Depositional environment:
Alpine-type fissure veins hosted within orthogneisses
Description:
Double-terminated quartz crystal (variety rocky quartz crystal)including rutile needles,muscovite and pyrite cubes.Crystals from this location commonly display scepter forms and windows.
Chemical formula:
SiO2
Crystal system:
Trigonal
Crystal schema:
Trapezohedral
Mineral size:
20 cm
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