Mindat Logo

Unnamed prospect (USGS PP 1361 locality 482), Lost Basin District, Lost Basin Mts (Lost Basin Range), Mohave Co., Arizona, USA

Latitude: 35°56'42"N
Longitude: 114°7'0"W
‡Ref.: Theodore, T.G., et al (1987), USGS PP 1361: 148-149 (Table 11).

A Au-Cu-Pb-Mo prospect located in the NW ¼ sec. 33, T.30N., R.17W.

Mineralization is a feldspathic vein 45 to 60 cm thick with a well-developed quartz core. The vein strikes N.55ºW. and almost verticle dip. Quartz-carbonate-pyrite-chalcopyrite stringers cut the South end of the vein. The stringers are up to 5 cm thick and strike N-S, dipping 70 to 75º E. The NE wall of the vein is a 5 cm thick crumbly fault gouge; whereas the SW wall of the vein is healed to country rock. A second quartz-carbonate vein strikes N.10-15ºE. approximately ½ of the way to the top of the hill from this locality and approximately 60 meters S.10ºE. of the termination of the first vein described. The second vein is 10 to 20 cm thick, locally brecciated, and shows no apparent copper staining or sulfides. Rock fragments in the second vein are intensely sericitized. There are several pegmatites of the quartz-cored and related types which strike N.50º-60ºW. and are also cut by quartz-carbonate veins.


Mineral List

Chalcopyrite
Chrysocolla
Cuprite ?
Galena
Goethite
Gold
Hematite
var: Specularite

Malachite
Muscovite
var: Sericite

Opal
Tenorite
Wulfenite


12 entries listed. 10 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.
This page is currently not sponsored. To sponsor this page click here.


Mineral and/or Locality
Search Google
 
Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Arizona, 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. 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: 3rd Jul 2011 03:13:51
Mineral and Locality Search
Mineral:
and/or Locality:
Options
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds