Article Topic: Examination of a ruby pendant brought in to BAUER and the effects of fracture filling.

Gem Material: Corundum variety Ruby
Authors: Ronnie Bauer and Chris Payne
Abstract from Article:
‘When gas bubbles are observed in natural Ruby, it is the result of gas remaining in the fracture when the liquid glass was forced in under pressure. The are two types of observable bubbles: Those that are perfectly spherical when the glass is filling in a large void and flatted bubbles are observed when the glass is used to infill the very narrow fractures.’

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