LIVE REPORT! The 46th Annual Friends of Mineralogy Pacific Northwest Chapter Mineral Symposium - last updated 1 hour ago. Click here to watch.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Lena No. 1 - 11 claims, Papago District (Sierrita District), Sierrita Mts, Pima Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
‡Ref.: Wright, R.J. (1950) Reconnaissance of Certain Uranium Deposits in Arizona, U.S. Atomic Energy Commission RMO-679.

Granger, H.C. & R.B. Raup (1962), Reconnaissance study of uranium deposits in Arizona, USGS Bull. 1147-A: A31-A34.

U.S. Atomic Energy Commission RME-159 (1970) Preliminary Reconnaissance for Uranium in Pima and Pinal Counties, Arizona, 1950 to 1957.

MRDS database Dep. ID file #10026777, MRDS ID #M000214.

A U-Cu-Pb-Zn claim with surface and underground workings located in secs. 5 & 8, T.18S., R.11E., on the western flank of the Sierrita Mountains, 11 miles W of Twin Buttes and about 25 air miles SW of Tucson. Owned by Manuel Obregon of Tucson.

Mineralization is a radioactive fissure vein in a light-colored, slightly foliated granite. In some places the granite contains irregular xenoliths of impure quartzite and consists of of steeply-dipping layers, of NW-trend. The ore body is lenticular at6 1.22 meters wide, striking N25W and dipping 75SW. Alteration is argillitic and partly silicified.

Local structures include fractures, dikes, and foliation of granite, all of which trend NW.

Workings include a 16 foot (4.88 meters) deep shaft.

Mineral List

7 entries listed. 6 valid minerals.

The above list contains all mineral locality references listed on 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 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.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 20, 2019 21:03:49 Page generated: January 25, 2015 22:08:57
Go to top of page