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

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Rocks & Min.: 15:47.
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Hamilton Clay Company pits, Hamilton, Hancock Co., Illinois, USA
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