Eudialyte
Image: <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> (CC BY-SA 3.0)
Description
This specimen features numerous reddish-brown to deep red, somewhat blocky Eudialyte crystals embedded within a lighter-colored matrix, possibly containing other associated minerals. The crystals exhibit a vitreous to greasy luster and are well-formed, showcasing their characteristic color.
Geological Context
Eudialyte is a characteristic mineral of alkaline igneous rocks, particularly nepheline syenites and their associated pegmatites and hydrothermal veins. It forms in environments rich in sodium, zirconium, and rare earth elements, often found in large intrusive complexes.
