Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Woodruffite, Chalcophanite


Woodruffite : Zn(Mn4+,Mn3+)5O10·3½H2O, Chalcophanite : (Zn,Fe,Mn)Mn3O7·3H2O

Photo Copyright © 2008, Jeffrey G. Weissman  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Dark brown woodruffite, showing typical mammillary surface, with black lustrous chalcophanite. The lighter brown may be either woodruffite or limonite.
2.5 cm sample.
Excalibur Mineral specimen.

This photo has been shown 248 times



< View User Page & Photos View Woodruffite Gallery Dark Background >
Mineral and/or Locality
Google
 
www.mindat.org Web
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: 30th Nov 2009 07:19:48