fossil replaced by mineral

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"Clinton" ore containing a fossil replaced with hematite. The fossil is the pygidium of a trilobite (possibly Calymene niagarensis). Lower Silurian, Brassfield Limestone, near Bainbridge, Ohio
"Clinton" ore containing a fossil replaced with hematite. The fossil is the pygidium of a trilobite (possibly Calymene niagarensis). Lower Silurian, Brassfield Limestone, near Bainbridge, Ohio
Filename: hematite_fossil_51868.jpg
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