Pyrite
Unknown Owner
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Sharp semi lustrous crystals of pyrite in a cluster with little attached matrix. In good condition.The Rensselaer Quarry, also known as the Pleasant Ridge Quarry, located near Pleasant Ridge in Jasper County, Indiana, is a former commercial aggregate operation that gained widespread renown among mineral collectors. Geologically, the quarry is excavated within Paleozoic carbonate strata of the middle Devonian Muscatatuck Group, consisting primarily of grayish-brown sparry dolostone. Vugs and cavities within the rock matrix frequently contain native hydrocarbon residues alongside hydrothermal mineral assemblages. The site is particularly famous for producing striking iron sulfide specimens, including intricate cockscomb marcasite, complex pyrite bars, and unique crystal overgrowths, as well as well-formed calcite and dolomite crystals.
Product details
SpeciesPyrite
SizeSmall Cabinet
Dimensions5.5 x 4.0 x 3.0 cm
Added on07/29/2026
LocalityUSA, Indiana, Rensselaer Quarry
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2026 | Unknown Owner | Not disclosed |
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Pyrite
brilliant metallic luster, perfect cubes, and golden color; collectors prize affordable pieces to top specimens, with Navajún and Huanzala localities.Regional guide
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