mineral
Quartz with Iron Oxide
Silicon Dioxide (SiO2) with Fe2O3
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous to dull luster, and trigonal crystal system with botryoidal or druzy microcrystalline habits.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous to dull luster, and trigonal crystal system with botryoidal or druzy microcrystalline habits.
Formation & geological history
Formed via hydrothermal precipitation where silica-rich fluids deposit crystals in rock cavities.
Uses & applications
Used in mineral collections, ornamental displays, and occasionally lapidary work.
Geological facts
Iron oxide staining gives the specimen its characteristic rusty brown and yellowish hues.
Field identification & locations
Identified by hardness, lack of cleavage, and sugary microcrystalline crystal coatings.
