$220Median
75Sold (12 mo)
$150Last sale
Pyrrhotite from Naica, Chihuahua, Mexico
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A wonderful combination piece with semi lustrous gemmy purple crystals of quartz measuring to 2.3 cm in length coming aesthetically off a matrix of crystallized sphalerite. Richly scattered throughout are thin platy crystals of what were once pseudo-hexagonal pyrrhotite, these now replaced by pyrite. These measure to 1.5 cm in size. In great condition, an excellent example from a short lived find in the late 1980s.The Naica mining district in Chihuahua, Mexico, originated with its first recorded claim in 1794, transitioned through intermittent operations and modern industrial development by companies like Industrias Penoles, and suspended operations indefinitely in October 2015 due to uncontrollable underground flooding. Geologically, the deposit sits within an Early Cretaceous carbonate sequence of limestones and dolostones intruded by a hidden magmatic body. This intrusive heat source maintained a deep, mineral-saturated thermal aquifer for hundreds of thousands of years, driving hydrothermal ore deposition (lead, zinc, and silver) as well as the specialized dissolution and recrystallization cycle that formed the world-famous giant selenite gypsum crystals found within its underground cavities.
Product details
SizeSmall Cabinet
Dimensions8.5 x 6.5 x 3.5 cm
Listed on09/29/2026
SKU1822126
Current owner
WM
Weinrich MineralsFeatured
3,402 for sale·9 sold
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Mineral guide
Learn about Pyrrhotite
bronze lustre sulfide with sharp hex plates and magnetism; prized by collectors for dramatic aesthetics, notable localities, and care tips.Regional guide
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