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Geosciences LibreTexts

12: Inclusions

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    • 12.1: Inclusions
      Inclusions can be generally defined as a foreign body, liquid, gaseous, solid, alone or in combination enclosed in the mass of a mineral. In gemology, we will expand that to also include cleavage cracks, fractures, color zoning, growth lines and included crystals of the same composition. Almost all gem materials, whether naturally occurring or man-made, will contain inclusions.

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