Calcite (Var: Manganoan Calcite), Limonite

Calcite (Var: Manganoan Calcite) : (Ca,Mn)CO₃, Limonite : FeO(OH)·nH₂O

Locality: Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramures Co., Romania

A fascinating specimen of mangano calcite with a feathery surface texture. Scalenohedrons are covered by secondary growth rosettes which, in turn, are peppered with thousands of dark brown cubic crystals believed to be pyrite pseudomorphed to limonite. 19cm X 10cm X 8cm

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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 11th Nov 2009 17:11:59

Calcite (Var: Manganoan Calcite), Limonite

Calcite (Var: Manganoan Calcite) : (Ca,Mn)CO3, Limonite : FeO(OH)·nH2O

Calcite (Var: Manganoan Calcite) : (Ca,Mn)CO₃, Limonite : FeO(OH)·nH₂O