Gemology

Gemology or gemmology is the science of dealing with natural and artificial gems and gemstones. It is considered a geoscience and a branch of mineralogy. Some jewelers are trained gemologists and are qualified to identify and evaluate gems.

Gemology Media

• Examining a pink sapphire under a gemmological microscope

• Peridot (Mg, Fe)₂SiO₄ in the rough form and a cut and polished gem.

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  Gemmological travel lab KA52KRS

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  A selection of ornamental, non-precious stones made by tumbling rough pebbles with abrasive grit in a rotating drum. The biggest pebble here is 40 millimetres (1.6 in) long.

• Traditional handheld refractometer

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  Three inclusion phases in rock crystal quartz

• The curvature observed in this synthetic color-change sapphire is due to a process known as the Verneuil process or, flame fusion.