MATTER LogoIntroduction to Point Defects

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Interstitials > Interstitial Sites in FCC Crystals (3)

Description of Flash Animation

This animation is an exercise to find tetrahedral interstices.

This resource requires Flash Player 9 or above available to download from

Now, click the mouse at each of the tetrahedral interstices.

Click here for help.

Tetrahedral interstices are bounded by four atoms whose centres join up to make a tetrahedron (four-sided figure).

In this example, there are eight tetrahedral interstices to find.

Click opposite to show an example.

Click to dismiss

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