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Pine Grove District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA

‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Prescott, AZ: 51.

Lindgren, W. (1926), Ore deposits of the Jerome and Bradshaw Mountains quadrangles, Arizona, USGS Bull. 782: 164.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 167, 236.

This is a silver-gold mining area located North of the Tiger District. It covers a few square miles North of Crown King and East of Towers Mountain (diorite mass) at 6,000 to 7,500 feet of altitude.

Country rock is a Northeastwardly-trending belt of schist which is intruded on the East by granite, on the West by granite and diorite, and on the SW by granodiorite. These rocks are cut by Northeastward-trending dikes of granite and rhyolite-porphyry.

Vein gangue consists mainly of quartz with some ankerite and calcite. Most mines are situated in granodiorite (quartz diorite according to Jaggar and Palache), which forms a rounded mass 3 to 4 miles diameter, intruded into Bradshaw granite and still earlier Yavapai schist. The granodiorite is cut by a series of dikes which trend north-northeast across the center of the area. There are three prominent vein systems, which trend north-northeast and generally dip about 60º WSW. The shoot have a tendency to pitch northward. Few of the veins are more than 5 feet wide.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Albite
'Albite-Anorthite Series'
Anglesite
Ankerite
'Apatite'
Baryte
Beudantite
Biotite
Calcite
Cerussite
Chalcanthite
Chalcocite
Chalcopyrite
'Chlorite Group'
Chrysocolla
Covellite
Fluorite
Galena
Gold
Hematite
Hidalgoite
Jarosite
'K Feldspar
var: Adularia'

Limonite
Magnetite
Malachite
Metatorbernite
Mottramite
Muscovite
var: Sericite

Opal
Orthoclase
Osarizawaite
Pyrite
Pyromorphite
Quartz
var: Amethyst
Quartz
var: Smoky Quartz

Siderite
Silver
Sphalerite
Stolzite
Tetrahedrite
Titanite
'Tourmaline'
Wulfenite


54 entries listed. 35 valid minerals.

Localities in this Region

USA
USA

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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.
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