Nero Gems
Raw Ruby 14.90 ct
Raw Ruby 14.90 ct
The gem appears included when observed with a 10-magnifying glass. The glassy appearance of its surface is caused by the heating treatment in the presence of fluxing materials, such as borax, in which the rough stones are immersed. These fluxes allow the recrystallization and internal fractures of the ruby, but having a lower melting point than the gem, they dissolve to form a glassy patina that remains on the surface of the rough stone and that will be eliminated with cutting. Or by heating treatment in the presence of lead-glass, which fills the fractures of the rough stone and covers its surface.
Tabular ruby crystal that presents itself with the typical hexagonal aspect, although it is an oxide that crystallizes in the trigonal system. The beauty of this gem consists precisely in the perfection of the hexagon and in the full and rich color; it is recommended to polish it in order to eliminate the patina of flux, maintaining the symmetry of the crystal and then mount it on a modern design jewel
Source: Natural
Cut: Raw
Weight in Ct: 14.9
Length in mm: 13.0
Width in mm: 11.9
Height in mm: 7.3
Treatments: Lead Glass Filling|Filling of cracks|Heating
Purity: Type III
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