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Grunerite, Magnetite, Quartz


Grunerite : ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2, Magnetite : Fe2+Fe3+2O4, Quartz : SiO2
minID: RG4-PDP

Photo Copyright © Maggie Wilson  - This image is copyrighted. Unauthorized reproduction prohibited.

H:6cm x W:3.5cm x D:2.5cm

Largest Crystal: 1.5cm

Crystals of grunerite in a matrix of magnetite and quartz from a new find.



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Photo added: 2nd Dec 2009

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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