Monday, January 19, 2015

Turquoise Feroza Birthstone Diamond Girl Fashion Jewellery In Haiti 29

Turquoise Feroza Birthstone Diamond Girl Fashion Jewellery In Haiti.
 By Aamir Mannan

These fakes are detected by gemmologists using a number of tests, relying primarily on non-destructive, close examination of surface structure under magnification; a featureless, pale blue background peppered by flecks or spots of whitish material is the typical surface appearance of natural turquoise, while manufactured imitations will appear radically different in both colour (usually a uniform dark blue) and texture (usually granular or sugary). Glass and plastic will have a much greater translucency, with bubbles or flow lines often visible just below the surface. Staining between grain boundaries may be visible in dyed imitations.









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