Topaz

NO INDICATION OF HEATING.

No gemological constraints (for instance no altered inclusions) are present which would indicate that a heat enhancement process was applied.

 

NO INDICATION OF HEATING; (OIL).

(Oil). No gemological constraints (for instance no altered inclusions) are present which would indicate that a heat enhancement process was applied. In some certain conditions may modify some internal characteristics of fissure filling by oil.

1. Insignificant.
2. Minor.

 

INDICATION OF HEATING; (H)

(H). In some certain heating conditions may not modify some internal characteristics or other features, if spectral data indicate heating has taken place (no residues present).

THE COLOR OF TOPAZ IS COMMONLY ENHANCED BY HEAT.

 

OTHER POSSIBLE TREATMENTS FOR TOPAZ

EE(C): COATING

Any topaz that show evidence of applying artificial external surface color coating in a thin layer process was applied.

 

EE(D): DYEING

Any topaz that show evidence of color is modified by dyed or colored substance process was applied.

 

EE(I): IRRADIATION

Any topaz that show evidence of nuclear bombardment; produced by irradiation, the process of which is usually stable.

The topaz of this color is commonly enhanced by irradiation.