Pseudomorphs

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These specimens are fine examples of pseudomorphs.  In these samples, an iron mineral (limonite) has replaced and taken the form of a carbonate mineral (siderite).  The result is limonite exhibiting rhombohedral form.  Limonite is not a particularly attractive mineral, but these pseudomorphs are interesting to collectors.

 

 

All fluorite specimens on this page are from Teller County, CO

Pseudomorphs—Limonite after Siderite  $10 and Under

Pseudomorphs—Limonite after Siderite  Over $10

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