Hematite replacing Calcite

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Hematite replacing calcite, 9 cm, from Sundwig (near Hemer), Sauerland region, North Rhine-Westphalia, Germany. Ex Robert Ferguson collection, circa pre-1846. Photo: Jeff Scovil.

Product details

SizeSmall Cabinet
Dimensions9.0 cm
Added on02/13/2026
Publications
  • Mineralogical Record Mineral Collections In American Midwest page 98
Current owner

Added by the community · Not a registered member

Previous owners
DateCollectorAcquisition price
—Robert Ferguson (1769–1840)Not disclosed

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Calcite
Mineral guide
Learn about Calcite
diverse shapes, colors, and optical quirks; widely available yet scarce elite pieces from Elmwood and Charcas drive collecting value and display.
Calcite
Regional guide
Calcite from North Rhine-Westphalia
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Locality guide
North Rhine-Westphalia
North Rhine-Westphalia, Germany — a dense ore province with Siegerland quartz on siderite, Ramsbeck lead–zinc veins, and Meggen/Mechernich textures prized by c…