<a href="https://en.wikipedia.org/wiki/Acanthite" class="extiw" title="en:Acanthite">Acanthite</a>
<dl><dd><dl><dd>Locality: Imiter Mine, Boumalne-Dadès, <a href="https://en.wikipedia.org/wiki/Ouarzazate_Province" class="extiw" title="en:Ouarzazate Province">Ouarzazate Province</a>, Souss-Massa-Draâ Region, Morocco (<a rel="nofollow" class="external text" href="http://www.mindat.org/loc-2394.html">Locality at mindat.org</a>)</dd>
<dd>Size: 6.1 x 4.6 x 4.3 cm.</dd>
<dd>This specimen of acanthite after argentite features a series of stacked, octahedral, splendent, jet-black crystals, to 1.8 cm in length. The crystals literally leap out from a matrix of calcite, silver ore, and massive acanthite (few specimens have any matrix, here). I particularly like the angled group at the top of the specimen, which features a birdlike crystal cluster of 2.4 cm atop.</dd></dl></dd></dl>
<bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a>
</bdi>
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