Home > Type Localities II – August 5 > MS1621 Zunyite

Zunyite


Zunyite is an aluminum silicate fluoride hydroxide chloride. Hillebrand (1885) named the mineral after the Zuni mine. Hillebrand also described an associated sulfosalt, naming it guitermanite; later work (Ferrari & Curti, 1934; Ramdohr, 1937) has shown it to be largely jordanite. Zunyite has tetrahedral symmetry, which is one of the point groups in the cubic crystal system. Linus Pauling solved the crystal structure in 1933 and found unusual Si5O16 groups, which may still be unique to this species.

This specimen consists of spongy altered rock hosting minor massive jordanite and countless zunyite crystals. Zunyite may possibly make up half of the mass of this piece specimen, although it forms here individual tetrahedral crystals to 0.5-1.0 mm. This specimen was part of the Charles Trantham (1936-2020) estate. A vintage Allen's Minerals label accompanies this specimen.

Price: $100

Item code: MS1621

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