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Color zoning in amethyst from Boudi, Morocco
Amethyst from Boudi, Morocco

An introduction to Moroccan amethyst, which features distinctive color zoning and inclusions.

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A Simple Procedure to Separate Natural from Synthetic Amethyst on the Basis of Twinning

Where there are no inclusions or colour zoning, the presence of Brazil twinning in the natural amethyst will usually make the distinction.

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