mineral
Quartz with Iron Oxide
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale; white to clear with yellow, brown, and orange iron staining; vitreous luster; hexagonal crystal system.
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Physical properties
Hardness of 7 on Mohs scale; white to clear with yellow, brown, and orange iron staining; vitreous luster; hexagonal crystal system.
Formation & geological history
Formed through hydrothermal vein deposition, where silica-rich fluids cooled and crystallized within rock fractures over millions of years.
Uses & applications
Used in mineral collecting, lapidary arts, decorative items, and occasionally as an ore indicator.
Geological facts
Iron oxide staining gives the quartz a characteristic rusty or golden coloration, often called ferruginous quartz or lemon quartz.
Field identification & locations
Identify by its high hardness (scratches glass), lack of cleavage, and distinctive iron-stained matrix; commonly found in pegmatites and hydrothermal veins worldwide.
