Mineral - Hawk's Eye

Name Hawk's Eye
Class Silicates
Category Microcrystalline quartz (chalcedony family)
Crystal system Trigonal
Chemical composition Silicon dioxide (SiO₂) with crocidolite inclusions
Hardness (Mohs scale) 6.5 to 7
Transparency Opaque
Geographical origin South Africa, India, Australia, Brazil, Myanmar