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Calcite : CaCO3
minID: TW4-H0J

Photo Copyright © 2005 M. R. Heintzelman  - This image is copyrighted. Unauthorized reproduction prohibited.

Sharp, rhombic crystals of Calcite with translucent golden coloration on a diabase matrix. typical of the specimens from the Dyer Quarry, Birdsboro, Berks Co, Pennsylvania. These calcites also exhibit a bright yellowish fluorescent response under SWUV Light. Collected in 2004 at level 6. Specimen size: 5.5 x 4.2cm. From the PA Annex of my personal collection, acquired in 2005.

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Photo added: 11th Apr 2005

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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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