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- Metal-coated_crystal abstract "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.Aqua aura is created in a vacuum chamber from quartz crystals and gold vapour by vapour deposition. The quartz is heated to 871 °C (1600 °F) in a vacuum, and then gold vapor is added to the chamber. The gold atoms fuse to the crystal's surface, which gives the crystal an iridescent metallic sheen. When viewed under a gemological microscope in diffused direct transmitted light, aqua aura displays the following properties:a coppery surface iridescence in tangential illuminationdiffused dark outlines of some facet junctionsa patchy blue colour distribution on some facetswhite facet junctions, irregular white abrasions and surface pits, where the treatment either did not \"take\" or had been abraded away.Rainbow quartz have been enhanced with a combination of titanium and gold. Titanium molecules are bonded to the quartz by the natural electrostatic charge of the crystal in a process known as magnetron ionization. The brilliant color of flame aura is the result of optical interference effects produced by layers of titanium. Since only electricity is used to deposit the titanium layers and create these colors, very little heat is involved and the integrity of the crystal is maintained. The crystal does not become brittle or prone to breakage as with other enhancements.".
- Metal-coated_crystal thumbnail Aqua_aura.jpg?width=300.
- Metal-coated_crystal wikiPageID "4682753".
- Metal-coated_crystal wikiPageLength "2659".
- Metal-coated_crystal wikiPageOutDegree "16".
- Metal-coated_crystal wikiPageRevisionID "699060241".
- Metal-coated_crystal wikiPageWikiLink Category:Crystals.
- Metal-coated_crystal wikiPageWikiLink Category:Gemstones.
- Metal-coated_crystal wikiPageWikiLink Chemical_vapor_deposition.
- Metal-coated_crystal wikiPageWikiLink Copper.
- Metal-coated_crystal wikiPageWikiLink Crystal.
- Metal-coated_crystal wikiPageWikiLink File:Flame_Aura.jpg.
- Metal-coated_crystal wikiPageWikiLink Gemstone.
- Metal-coated_crystal wikiPageWikiLink Gold.
- Metal-coated_crystal wikiPageWikiLink Indium.
- Metal-coated_crystal wikiPageWikiLink Interference_(wave_propagation).
- Metal-coated_crystal wikiPageWikiLink Niobium.
- Metal-coated_crystal wikiPageWikiLink Quartz.
- Metal-coated_crystal wikiPageWikiLink Rhinestone.
- Metal-coated_crystal wikiPageWikiLink Titanium.
- Metal-coated_crystal wikiPageWikiLink Vacuum.
- Metal-coated_crystal wikiPageWikiLink File:Aqua_aura.jpg.
- Metal-coated_crystal wikiPageWikiLinkText "Metal-coated crystal".
- Metal-coated_crystal wikiPageWikiLinkText "Metal-coated crystal#Flame Aura".
- Metal-coated_crystal wikiPageWikiLinkText "coated with metal vapors".
- Metal-coated_crystal wikiPageUsesTemplate Template:Cn.
- Metal-coated_crystal wikiPageUsesTemplate Template:Commonscat.
- Metal-coated_crystal wikiPageUsesTemplate Template:Refimprove.
- Metal-coated_crystal wikiPageUsesTemplate Template:Reflist.
- Metal-coated_crystal subject Category:Crystals.
- Metal-coated_crystal subject Category:Gemstones.
- Metal-coated_crystal hypernym Crystals.
- Metal-coated_crystal type Movement.
- Metal-coated_crystal comment "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.".
- Metal-coated_crystal label "Metal-coated crystal".
- Metal-coated_crystal sameAs Q2910659.
- Metal-coated_crystal sameAs אקווה_אורה.
- Metal-coated_crystal sameAs アクアオーラ.
- Metal-coated_crystal sameAs m.0ch2wx.
- Metal-coated_crystal sameAs Q2910659.
- Metal-coated_crystal wasDerivedFrom Metal-coated_crystal?oldid=699060241.
- Metal-coated_crystal depiction Aqua_aura.jpg.
- Metal-coated_crystal isPrimaryTopicOf Metal-coated_crystal.