Crystal structure of <a href="https://en.wikipedia.org/wiki/Gallium" class="extiw" title="en:Gallium">α-Gallium</a>
<a href="//commons.wikimedia.org/wiki/User:Orci" title="User:Orci">Orci</a>, data source: B.D. Sharma, J. Donohue: A refinement of the crystal structure of gallium. In: Zeitschrift fiir Kristallographie, Bd. 117, S. 293-300 (1962)
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<span class="int-own-work" lang="en">Own work</span>