Mineral - Hematoid Quartz

Name Hematoid Quartz
Class Oxides
Category Quartz containing hematite inclusions
Crystal system Hexagonal
Chemical composition Silicon dioxide (SiO₂) with iron oxide (Fe₂O₃) inclusions
Hardness (Mohs scale) 7
Transparency Transparent to translucent
Geographical origin Brazil, Madagascar, United States, Morocco, Spain