|Comments:||traced back the reference to material collected by Sid Williams, Dick Bideaux and and Dick Thomssen circa 1960, apparently identified by optical methods only. Samples of that material were housed at the University of Arizona and were recently X-rayed by Bob Downs and found to be muscovite. |
Minute tabs in quartzite with kyanite, etc.
|References:||Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 287; Bideaux, R.A., et al (1960), Some new occurrences of minerals of AZ, AZ Geol. Soc. Digest: 3: 53-56.|
|Mineral Data:||Click here to view Manandonite data|
|Locality Data:||Click here to view Dumortierite occurrence , Quartzsite, La Paz Co., Arizona, USA|