Calcite, Marcasite - image 1
Photo by Jeffrey A. Scovil

Calcite, Marcasite

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Scalenohedral calcite crystal, 5 cm, with rhombic marcasite phantom from the Linwood mine, Buffalo, Scott County, Iowa. Jeff Scovil photo.

Product details

SpeciesCalcite, Marcasite
SizeMiniature
Dimensions5.0 cm
Added on02/13/2026
LocalityUSA, Iowa, Buffalo
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 138
Current owner
Carl A. Francis

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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 Buffalo
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Locality guide
Buffalo
Buffalo, USA — Linwood Mine and LaFarge/Buffalo quarry yield calcite, barite, marcasite, pyrite, sphalerite; prized glassy calcite pockets draw collectors.