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Helvine with Ilvaite, Quartz and Chlorite
Helvine with Ilvaite, Quartz and Chlorite. Front
Front
Helvine with Ilvaite, Quartz and Chlorite. Front 2
Front 2
Helvine with Ilvaite, Quartz and Chlorite. Side
Side
Helvine with Ilvaite, Quartz and Chlorite.
 

TF72AD6: Rosette growth of very sharp tetrahedral Helvine crystals that have well defined faces and edges. With the Helvine there are large Ilvaite crystals with polycrystalline surfaces and also very elongated Quartz crystals with parallel growths perpendicular to their main axis. All them are on matrix and partially coated by chlorite, which is also included in the Quartz. The sample is of an exceptional quality, among the best found at Huanggang. We’ll send a copy of the Helvine analysis to the buyer of the sample.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (2012)

Specimen size: 13 × 10.5 × 17 cm = 5.12” × 4.13” × 6.69”

Main crystal size: 2 × 1.9 cm = 0.79” × 0.75”




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