<a href="https://en.wikipedia.org/wiki/Groutite" class="extiw" title="en:Groutite">Groutite</a>
<dl><dd><dl><dd>Locality: Emilie Mine (Bülten-Adenstedt Mine), <a href="https://en.wikipedia.org/wiki/Peine" class="extiw" title="en:Peine">Peine</a>, <a href="https://en.wikipedia.org/wiki/Lower_Saxony" class="extiw" title="en:Lower Saxony">Lower Saxony</a>, Germany (<a rel="nofollow" class="external text" href="http://www.mindat.org/loc-7065.html">Locality at mindat.org</a>)</dd>
<dd>Size: 9.5 x 4.8 x 4.2 cm.</dd>
<dd>This is an outstanding specimen of crystallized groutite in huge crystals and in a rich quantity, as well. The clusters of crystals measure to 1 cm and are richly scattered about a hollow vug inside this manganese oxide nodule. The overall specimen is important for the species, but also interesting for how it shows the crystals formed, inside a hollowed nodule of the manganese oxides. When I first saw this specimen I was sure it was perhaps manganite or some other species, as groutite seldom forms such large crystals, nor such rich masses from other locations. But then I remembered I had one such before, as well. They are rare, and seldom seen. Also, the lustre on these crystals is quite good. From an old German collection.</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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