https://www.wolframalpha.com/input/?i=gyroelongated+square+dipyramid
gyroelongated square dipyramid - Wolfram|Alpha
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https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/dipyramid
dipyramid | Encyclopedia.com
dipyramid See BIPYRAMID. Source for information on dipyramid: A Dictionary of Earth Sciences dictionary.
encyclopedia