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Point of Rocks Quarry, Point of Rocks Mesa (Pecks Mesa), Springer, Colfax Co., New Mexico, USA

Photo: László Horváth

Latitude: 36°25'N
Longitude: 104°9'W

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A phonolite sill, consisting of alkali feldspar, zeolites and nepheline, which caps a mesa of olivine basalts and Cretaceous sedimentary rocks.

Mineral List

57 entries listed. 51 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

DeMark, R. S. (1984): Minerals of Point of Rocks, New Mexico. Mineralogical Record: 15: 150-156.

Rocks & Minerals (1985): 60: 229.

(1990) USGS Professional Paper 1507

Tschernich, R. (1992): Zeolites of the World: 67.

Northrop (1996), Minerals of New Mexico, 3rd. revised edition.

Piilonen, P.C., et al. (2003): Insights into astrophyllite-group minerals. I. Nomenclature, composition and development of a general standard formula. Canadian Mineralogist 41, 1-26. [with analysis of kupletskite from Point of Rocks]

External Links

http://www.koeln.netsurf.de/~w.steffens/point.htm

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Copyright © Jolyon Ralph and Ida Chau 1993-2013. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 22nd Apr 2013 21:52:26