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Curved Rutile Crystal in Quartz Matrix
ID: 3275
A large curved rutile crystal embedded in a quartz matrix, with inclusions of sulfides, presumably chalcopyrite or pyrite, as well as scattered iron oxide phases (likely goethite or limonite) and possibly copper minerals. In addition to the main curved crystal, several smaller rutile crystals are also present in the specimen. Transverse fractures can be observed on the surface of the large crystal, likely caused by tectonic deformation or other stress events during the formation and transformation of the host rock. The curved morphology of the rutile crystal, a rare feature for this mineral, may also have resulted from tectonic or fluid-related processes.

Locality: Mauk area, Chelyabinsk region, Russia
Dimensions: 74 × 65 × 30 mm
Weight: 149.22 g