Cathedral Mountain quadrangle, Davis Mts, Brewster Co., Texas, USA

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References:
Zarins, A. (1977) Origins and geologic history of siliceous metacolloidal deposits, Cathedral Mountain Quadrangle, Brewster County, west Texas: University of Nebraska, unpublished MS Thesis. 49 p

Group 4 - Oxides and Hydroxides

Opal

4.DA.10

SiO

·nH

Quartz
var: Amethyst

4.DA.05

SiO

Unclassified Minerals

'Chalcedony
var: Bloodstone'

'var: Moss Agate'

4 entries listed. 2 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Texas, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 31st Oct 2009 01:23:47