Titanium aura quartz sphere - price for 1 piece

Intense and dramatic, these titanium aura quartz spheres have a deep, dark body that serves as a backdrop for vivid shifting rainbow iridescence: gold, olive-green, blue, and purple move across the surface as the viewing angle changes. The effect is strongly metallic, with a mirror-like quality to the finish that is more pronounced than in the other aura varieties. The rainbow is broad and continuous across the entire surface rather than confined to isolated spots, creating an all-over colour play that shifts fluidly with the light. A bold, high-contrast piece with real visual presence.

Aura quartz is natural quartz that has been color-treated through vacuum vapor deposition, a process in which metal atoms are bonded to the crystal surface under high temperature and low pressure. The full-spectrum rainbow characteristic of titanium aura quartz is produced by the deposition of titanium onto the quartz surface; titanium creates a range of optical interference colours across the visible spectrum depending on the thickness of the deposited layer, which is what produces that distinctive all-over metallic rainbow play. Being a surface treatment rather than a body-color change, the coating can be scratched or gradually worn by abrasion, so these spheres are best kept on a display stand and away from hard or rough surfaces to preserve the metallic finish long-term. Price is per single piece.

• Stone type: Natural quartz (aura treated)
• Weight: 0.28ct
• Size: 17-18mm
• Color: Multicolor rainbow metallic iridescence
• Cut: Sphere
• Clarity: Semi-transparent
• Treatment: Nano-coating
• Origin: China
• Hardness: 7 (Mohs)

Natural quartz, titanium aura nano-coating, sphere, sold per piece.