gemstone
Rainbow Quartz (Dyed/Coated Quartz)
Silicon Dioxide (SiO2) with artificial color enhancement
Hardness of 7 on the Mohs scale, vitreous to greasy luster, hexagonal crystal system (though cut into a cabochon), conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous to greasy luster, hexagonal crystal system (though cut into a cabochon), conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Natural quartz formed in hydrothermal veins or pegmatites, subsequently treated by humans using dye and/or metallic vapor deposition to create vibrant rainbow colors.
Uses & applications
Primarily used in jewelry making, costume jewelry, and crystal collections due to its bright, eye-catching colors.
Geological facts
While natural quartz comes in many colors (like amethyst or citrine), the vibrant rainbow spectrum seen here is produced through human intervention, often referred to as dyed quartz, aura quartz, or splash quartz.
Field identification & locations
Easily identified by its unnatural, highly saturated rainbow patches that penetrate fractures or sit uniformly across a polished cabochon; commonly found in tourist markets and metaphysical shops.
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