Ferrocalcite

• (n.) Limestone containing a large percentage of iron carbonate, and hence turning brown on exposure.
Found on http://thinkexist.com/dictionary/meaning/ferrocalcite/

Ferrocalcite

Fer`ro·cal'cite noun [ Ferro- + calcite .] Limestone containing a large percentage of iron carbonate, and hence turning brown on exposure.
Found on http://www.encyclo.co.uk/webster/F/21
No exact match found