Sphalerite Var Marmatite and Pyrite

Unknown Owner
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Marmatite is an iron rich variety of sphalerite. Here it is shown in as euhedral lustrous black crystals in an aesthetically pleasing combination with contrasting brassy pyrite. Not a rarity by any means from this locality which is well known for both minerals in Colorado, but a pleasing specimen nonetheless for its quality of both species. Minor coatings of chalcopyrite are observed on some of the pyrite under a microscope.

Product details

SizeMiniature
Dimensions3.7 x 3.5 x 1.3 cm
Added on11/06/2024

Known provenance

DateCollectorAcquisition price
09/2025Unknown OwnerNot disclosed
DanZ RockshopNot disclosed

Learn more

Sphalerite
Mineral guide
Learn about Sphalerite
diverse colors from honey to black, gemmy, diamond-like luster, and localities worldwide; a collector favorite for dramatic crystals and color.
Regional guide
Sphalerite from Eagle Mine
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