Rosie is a freelance writer living in London. She has covered everything from ancient Egyptian temples to exciting medical breakthroughs, but she particularly enjoys writing about wildlife ...

The hot oil can also cause the material to develop a series of spangled, glittery inclusions. Amethyst – Heating can remove unwanted brownish inclusions in some amethysts or lighten the color of ...

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This amazing ametrine trilliant cut features a multitude of facets to create internal reflections that blend the amethyst and citrine colors. Photo by Robert Weldon/GIA, courtesy Minerales y Metales ...

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