zirconoid

Noun.  (crystallography) A double eight-sided pyramid, a form common with tetragonal crystals; — so called because this form often occurs in crystals of zircon.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.