‡Ref.: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 379; Jahns, R.H. (1952), Pegmatite deposits of the White Picacho District, Maricopa and Yavapai Cos., AZ, AZ Bur. Mines Bull. 162: 78-83; Jahns, R.H. (1953), The genesis of pegmatites, Am.Min.: 38: 563-598; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 20 (Table A-1); Phillips, K.A. (1987), Arizona Industrial Minerals AZ Dept. of Mines and Mineral Resources Mineral Rpt. 4; USGS Red Picacho map; AZ Dept. Min. Resources (ADMR) Industrial Minerals Rept.: 36; MRDS files #10048192 & 10186488.
A group of claims and mine located in the W ½ sec. 16, T.7N., R.3W., NW side of San Domingo Wash.
The country rock in this general area is thinly foliated to slabby amphibole schist, quartz-biotite schist, and quartz-biotite-muscovite schist, most of which is medium dark gray in color. These rock types are intimately interlayered, and locally contain lenses of amphibolite and epidosite. Most appear to be of volcanic origin, and several thick, tabular masses of agglomerate and breccia are clearly recognizable. Both foliation and layering strike WNW to West, and dip 45º to 55º North. The general structure is rather uniform, but the rocks are much crumpled and contorted in detail. Here and there the schist is cut by quartz veins and by dikes of fine-grained, very dark gray amphibolite.
Near the pegmatite contacts the schist has been impregnated with abundant potash feldspar and flakes of pale green muscovite.
The Morning Star pegmatites are irregular, steeply-dipping dikes that are exposed on a prominent ridge.
Mineral List
Mineral list contains entries from the region specified including sub-localities
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 Locality Search
