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GEMSTONE TREATMENTS

By Gemology Online

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Across
1.Treatment used to lighten or totally remove a brownish hue in some Type IIa diamonds
3.Radiogenic element found in natural Oregon Andesine.
6.Accepted on Mystic topaz, this treatment is considered deceptive on other gems.
7.Diffusion can be used to improve color, change color, or create this optical phenomenon.
10.Oved and Yehuda use this for infilling diamonds.
13.Scandalized with glass filling.
14.Pounding material with subatomic particles
15.The introduction of a bonding agent, usually plastic, into a porous material.
18.Most jadeite on the market today has been _____ before treated with polymers
19.Process used to rid diamonds of dark inclusions.
20.Color removed when aquamarine is heated.
21.Glass, plastic or other materials can be used in this treatment process.
Down
1.The most common treatment
2.Organic gems subjected to bleaching, dyeing and irradiation
4.Infusing light elements at high temperatures
5.Gem routinely heat Treated, Flux healed, fracture filled and lattice diffused.
8.A gem which may not exist if it were not for heat treatment.
9.Oil of preference used to treat emeralds
11.Heated in either oxygen rich or oxygen poor environments to make colorless or blue.
12.Source of the beryllium used in the first accidental diffusion treatments
16.Microscopic technique used to identify "surface" diffusion
17.Without this treatment there would be no black onyx
18.The color of "flash" seen with glass filling.

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