This resource is no longer officially part of our collectionThis resource has been removed from our collection, likely because the original resource is no longer available.
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The goal of this site is to provide a pragmatic guide to identifying minerals that are commonly found in fossils, as original or replacement minerals. Descriptions, hand specimen photos and photomicrographs of calcite, aragonite, pyrite, marcasite, selenite and celestite are provided on this site. References and links to additional information are also supplied.