mineral
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Hardness 7 (Mohs), Multi-colored iridescent (rainbow) metallic luster, Hexagonal crystal system, Conchoidal fracture, 2.65 specific gravity
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Physical properties
Hardness 7 (Mohs), Multi-colored iridescent (rainbow) metallic luster, Hexagonal crystal system, Conchoidal fracture, 2.65 specific gravity
Formation & geological history
Natural quartz crystals (often from Brazil or Arkansas) that undergo a modern CVD (chemical vapor deposition) process in a vacuum chamber, where titanium atoms are bonded to the surface.
Uses & applications
Used primarily in decorative items, fashion jewelry, and by collectors of metaphysical or 'New Age' crystals.
Geological facts
While the core crystal is natural, the rainbow coloration is man-made; it is often mistaken for naturally occurring bismuth or labradorite's labradorescence by novice collectors.
Field identification & locations
Identify by its intense, permanent rainbow sheen that cannot be scraped off easily; commonly sold in metaphysical shops or gem shows.
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Arenite (SiO2 based)
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Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
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Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
mineral
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
mineral