<a href="https://en.wikipedia.org/wiki/Arcanite" class="extiw" title="en:Arcanite">Arcanite</a>
<dl><dd><dl><dd>Close view. Mineral collection of Brigham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 10-7018.</dd></dl></dd></dl>
Andrew Silver
<a rel="nofollow" class="external free" href="https://library.usgs.gov/photo/#/item/51db4f2ee4b02290dffa0367">https://library.usgs.gov/photo/#/item/51db4f2ee4b02290dffa0367</a>