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COMPOUND CRYSTAL [1 record]

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Alphabetical list of terms

Record 1 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A characteristic of some rough diamonds; two crystals that are bonded along a seam and rotated 60° to one another; inclusions are normally trapped along the seam; also referred to as twinning.

CONT

Crystal distorted at the atomic level early in its growth as a result of changes in the orientation of atoms; as atoms continue to attach themselves to the re-oriented segment, another crystal begins to form, intergrown with the first. Twin crystals can be made up of two or more such intergrown crystals holding planes of atoms in common.

CONT

Seam line along which twinned crystal is formed.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Jonction le long de laquelle le cristal maclé est formé.

Spanish

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