Ruby

Corundum

Image #:

RL10030

Origin:

Natural

Unknown

Treatment:

Heating (AGTA H)

Field of view \ Magnification:

3.00 mm

Photography technique(s):

Diffused illumination

Evidence of high temperature heat treatment probably doesn’t come any more obvious than when Ti-bearing inclusions such as rutile begin to release their Ti into the surrounding host, coupling with Fe and creating a bluish halo

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