$450Median
2869Sold (12 mo)
$5,000Last sale
Calcite twin
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Calcite twin, 2.5 cm, from the IMI quarry, Madison County, Indiana (INSM 71.4.2912). Ex Vern L. Swanson collection. Indiana State Museum and Historic Sites photo by Steve Happe.
Product details
SpeciesCalcite
SizeThumbnail
Dimensions2.5 cm
Added on02/13/2026
LocalityUSA, Indiana, Madison County
Publications
- Mineralogical Record Mineral Collections In American Midwest page 112
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Vern L. Swanson | Not disclosed |
Learn more
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.
Regional guide
Calcite from Madison County
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