<a href="https://en.wikipedia.org/wiki/Perovskite" class="extiw" title="en:Perovskite">Perovskite</a>, variety "Dysanalite" (niobium-rich), 1.6 x 1.5 x 1.4 cm - Locality: Perovskite Hill, Magnet Cove, Hot Spring County, Arkansas, USA
<a rel="nofollow" class="external text" href="http://www.mindat.org/user-10773.html#0">Kelly Nash</a>
CC BY 3.0
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