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The Occurrence of Alstonite at Cave in Rock, Illinois

Rossman, George R. and Squires, Richard L. (1974) The Occurrence of Alstonite at Cave in Rock, Illinois. Mineralogical Record, 5 . pp. 266-269. ISSN 0026-4628.

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CaBa(CO_3)_2 has been identified as coatings of pyramidal crystals on veins of mixed carbonates in specimens of barium and calcium carbonates from the Minerva mine at Cave in Rock, Illinois. This represents the first recorded American occurrence of this mineral. It is biaxial negative, Nα = 1.526, Nβ = 1.671, Nγ = 1.672. Infrared spectra, x-ray powder diffraction data, and emission spectrographic data are reported.

Item Type:Article
Rossman, George R.0000-0002-4571-6884
Additional Information:© 1974 Mineralogical Record Inc. We thank W. J. Rodekohr for bringing to our attention the unidentified mineral in the Cave in Rock speciments, and Stephen Weiner for assistance with the electronmicroscope photography.
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Caltech Division of Geological Sciences2434
Record Number:CaltechAUTHORS:20130326-150312839
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37636
Deposited By: Tony Diaz
Deposited On:09 Jul 2013 18:19
Last Modified:03 Oct 2019 04:49

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