Calcite on Copper

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Calcite on copper, 2.6 cm, from the Quincy mine, Houghton County, Keweenaw Peninsula, Michigan. Illustrated in Mineral Collections in Arizona-I (2013). Ex William W. Jefferis (1820-1906), ex Carnegie Museum of Natural History, ex Delbert Oswald (1915-1994). Jeff Scovil photo.

Product details

SizeMiniature
Dimensions2.6 cm
Added on02/13/2026
Publications
  • Mineralogical Record Refined Elegance page 153

Known provenance

DateCollectorAcquisition price
Delbert OswaldNot disclosed
Carnegie Museum of Natural HistoryNot disclosed
William W. JefferisNot disclosed

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Copper
Mineral guide
Learn about Copper
native copper with spinel-twinned crystals and arborescences; notable from Lake Superior, Itauz, Dongchuan, Corocoro, prized for color and localities.
Regional guide
Copper from Quincy Mine
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