Calcite

Photo Copyright © 2000-2002 by John H. Betts. All Rights Reserved.
This photo, and many others, have been provided by John Betts Fine Minerals - http://www.johnbetts-fineminerals.com - For more fine minerals click here. - This image is copyrighted. Unauthorized reproduction prohibited.

Locality: Keweenaw Co., Michigan, USA

Native copper matrix with overgrowth of colorless calcite crystals. The calcite protects the copper from oxidation, making the copper within the calcite bright color. All crystals complete and undamaged. Ex. Travis collection. Overall size of mineral specimen: 10x8x5 cm. Size of individual crystals: 3-8 mm.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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. 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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