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RM2426   Zunyite and hematite

Qualat-e-Balat salt dome, Bandar Abbas, Hormozgan, Iran

Very well defined zunyite crystal, with luster and on matrix. Its intense colour is due to hematite inclusions. With very clean tetrahedron shape, truncated by cube faces. The edge of the tetrahedron measures 8 mm. It is included in a matrix of hematite. A crystallographic specimen of this mineral species, a rare aluminum chlorine sorosilicate with fluorine. We performed some X-ray diffraction studies that confirmed the species. We recommend an interesting article about this Iranian deposit in the magazine Rocks and Minerals (Vol. 95, nº 2, 2020).

Size: 5.5 x 5.2 x 4 cm.
Main crystal: 8 mm edge.

Analyzed specimen with report