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GEOREF RECORD

Braitschite, a new hydrous calcium rare-earth borate mineral from the Paradox Basin, Grand County, Utah

Omer B. Raup, Arthur J. Gude, E. J. Dwornik, Frank Cuttitta and Harry J. Rose
Braitschite, a new hydrous calcium rare-earth borate mineral from the Paradox Basin, Grand County, Utah
American Mineralogist (August 1968) 53 (7-8): 1081-1095

Abstract

Braitschite occurs in white to reddish-pink nodules which constitute a zone in anhydrite rock immediately overlying a potash bed. Crystals of braitschite are colorless to white, very small hexagonal plates with only pinacoid and prism forms. Specific gravity is 2.903+ or -0.002 (meas.), 2.837 (calc.). Optically, uniaxial positive, epsilon =1.647, omega =1.646. The unit cell is hexagonal, a=12.156+ or -0.001 A, c=7.377+ or -0.005 A, Z=1. Strongest lines of the X-ray diffraction pattern (in A) are: 10.52 (54) (100); 4.283 (100)(102); 3.168 (45)(301); 3.155 (38)(112); 3.021 (92)(202).


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 53
Serial Issue: 7-8
Title: Braitschite, a new hydrous calcium rare-earth borate mineral from the Paradox Basin, Grand County, Utah
Pages: 1081-1095
Published: 196808
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
Accession Number: 1968-059401
Categories: Mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus., tables
N38°30'00" - N39°31'00", W110°13'00" - W109°02'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1968
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