Published November 1974
| public
Journal Article
The Occurrence of Alstonite at Cave in Rock, Illinois
- Creators
-
Rossman, George R.
- Squires, Richard L.
Chicago
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Abstract
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.
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.Additional details
- Eprint ID
- 37636
- Resolver ID
- CaltechAUTHORS:20130326-150312839
- Created
-
2013-07-09Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences (GPS)
- Other Numbering System Name
- Caltech Division of Geological Sciences
- Other Numbering System Identifier
- 2434