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Chalcedony from
Hamilton Clay Company pits, Hamilton, Hancock Co., Illinois, USA

Mineral Species
Species:Quartz var: Chalcedony
Quality for species:not specified / average specimens
Validity:Believed Valid
References:Rocks & Min.: 15:47.
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Hamilton Clay Company pits, Hamilton, Hancock Co., Illinois, USA
Nearest other occurrences of Chalcedony
0.6km (0.4 miles) A Hamilton, Hancock Co., Illinois, USA
21.0km (13.1 miles) B St. Francisville, Warsaw geodes, Clark Co., Missouri, USA
225.7km (140.2 miles) C Ruprecht Quarry, St. Louis Co., Missouri, USA
232.5km (144.5 miles) D Weber Quarry, St. Louis Co., Missouri, USA
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