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F-center

F-center

Type of crystallographic defect.

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  1. Blue John (mineral)

    Form of fluorite and semi-precious mineral.

    28%

  2. Zinc oxide

    White powder insoluble in water.

    20%

  3. Vacancy defect

    Crystallographic defect; an atom missing from a lattice site.

    15%

  4. Nitrogen-vacancy center

    Point defect in diamonds.

    15%

  5. Fluorite

    Mineral form of calcium fluoride.

    8.2%

  6. Ion

    Particle, atom or molecule with a net electrical charge.

    7.6%

  7. Electride

    Ionic compound with electrons as the anion.

    7%

Readers come from

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  1. Smoky quartz

    Brown to black variety of quartz.

    18%

  2. Electride

    Ionic compound with electrons as the anion.

    17%

  3. Thoriated glass

    Glass material used in lenses.

    15%

  4. Pezzottaite

    Mineral species.

    11%

  5. Crystallographic defect

    Disruption of the periodicity of a crystal lattice.

    9.4%

  6. Beryl

    Gemstone: beryllium aluminium silicate.

    9.2%

  7. Zircon

    Zirconium silicate mineral.

    5.2%

  8. Citrine

    Transparent, yellow variety of quartz.

    2.7%