mineral
Red Quartz
Silicon Dioxide (SiO2) with hematite inclusions
Hardness of 7 on the Mohs scale. Colors range from light orange-pink to deep reddish-brown due to iron oxide inclusions. Luster is vitreous to greasy. Crystal structure is trigonal. Conchoidal fracture with no true cleavage. Specific gravity is 2.65.
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Physical properties
Hardness of 7 on the Mohs scale. Colors range from light orange-pink to deep reddish-brown due to iron oxide inclusions. Luster is vitreous to greasy. Crystal structure is trigonal. Conchoidal fracture with no true cleavage. Specific gravity is 2.65.
Formation & geological history
Formed in hydrothermal veins, pegmatites, and sedimentary environments where silicon-rich solutions crystallize and incorporate iron oxides during formation.
Uses & applications
Used in crystal healing, decorative items, lapidary arts, and gemstone jewelry.
Geological facts
The distinct red or orange coloration is caused by microscopic inclusions of hematite or iron oxide staining trapped within the quartz matrix during its growth process.
Field identification & locations
Easily identified by its hardness (scratches glass), lack of cleavage, and characteristic reddish-orange coloration. Found globally in quartz-bearing rocks and alluvial gravels.
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