Huanggang Mine, Inner Mongolia, China

6.3 x 5.6 x 4.6 cm
2.5 x 2.2 x 1.8 in

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A radiating cluster of elongated Ilvaite crystals with a squarish cross section. The Ilvaite crystals are coated with a thin layer of micro crystals of gray/green colored Hedenbergite. Additionally, Hedenbergite has grown on the terminations of the Ilvaite crystals in shapes reminiscent of cauliflower. On some of the terminations, the layer of Hedenbergite is missing which reveals the black, lustrous Ilvaite beneth. There is also silver colored Arsenopyrite present on one side of the specimen.

Condition: Good

Flaws: The layer of Hedenbergite has peeled off in a few places, most notably the terminations of several of the Ilvaite crystals.

This mineral is also found in the following galleries: Minerals From China | Sorosilicates | Sulfides and Sulfosalts | Inosilicates | Minerals Priced Between 100 and 199 Dollars