Metal-coated crystal

Aqua aura, crystals coated with gold fumes

Metal-coated crystals are natural crystals, such as quartz, whose surface has been coated with metal to give them an iridescent metallic sheen. Crystals treated this way are used as gemstones and for other decorative purposes. Possible coatings include gold (resulting in a stone called aqua aura), indium, titanium, niobium and copper. Other names for crystals so treated include angel aura, flame aura, opal aura or rainbow quartz.

单词	Rainbow quartz
释义	Rainbow quartz 英语百科 Metal-coated crystal Metal-coated crystals are natural crystals, such as quartz, whose surface has been coated with metal to give them an iridescent metallic sheen. Crystals treated this way are used as gemstones and for other decorative purposes. Possible coatings include gold (resulting in a stone called aqua aura), indium, titanium, niobium and copper. Other names for crystals so treated include angel aura, flame aura, opal aura or rainbow quartz.
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Rainbow quartz

Metal-coated crystal