Donate now to keep alive!Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
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
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Lavender Open Pit Mine (Lavender pit), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
Location is approximate, based on center of defined region.
Latitude & Longitude (WGS84): 31° 25' 54'' North , 109° 53' 54'' West
Latitude & Longitude (decimal): 31.43194,-109.89861

A former large output surface Cu-Au-Ag-Zn-Gemstone mine located in the SW¼ sec 10, NW¼NW¼ sec. 15, T.23S., R.24E. Bisbee 7.5 minute topo map), NW edge of Lowell, on private land. Produced 1954-1974. Owned by the Phelps Dodge Corp.

Mineralization is a porphyry copper deposit with a blanket ore body of low grade disseminated chalcocite with local spots of other copper and zinc sulfides in a blanket deposit in a brecciated intrusive porphyry plug adjoining altered Paleozoic limestones along the Dividend fault. Ore concentration was bornite replacing pyrite. An associated rock unit is the Sacramento Hill Stock. Low-grade copper ores. The turquoise was a hard, deep blue, sometimes found in a matrix of hard red mineral (cuprite?).

Local structures include pre-mineralization faulting and tilting. Main fault directions are N10W to N40E and S30W to N50W. The Dividend Fault "horsetails", its strike is N20E and it dips S70. Displacement along the fault is about 500 feet. This fault Separates the Sacramento/Lavendar pit and the extension to the east (Cochise project).

Workings are a huge open pit 914.4 meters long (1,219.2 meters overall length) by 457.2 meters wide and over 750 feet deep (more than 15, 50 foot high benches). Some 75 million tons of ore were produced from 1954 to 1970.

The current highway follows the Dividend Fault. Large bulk mineable, low-grade porphyry copper ore. There is substantial supergene ground water enrichment at the base of the leach cap. There is a substantial reserve of Cu ore. The chalcocite blanket was nearly mined out but recent exploration (1989-1991) has identified several high-grade polymetallic targets in the Mississippian limestone. Future open pit mining would use electro-winning solution leach processing methods.

Mineral List

36 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Campanian - Oxfordian
72.1 - 163.5 Ma

ID: 2847794
Cretaceous to Late Jurassic sedimentary rocks with minor volcanic rocks

Age: Mesozoic (72.1 - 163.5 Ma)

Stratigraphic Name: Temporal Formation; Bathtub Formation; Sand Wells Formation; Fort Crittenden Formation; McCoy Mountains Formation

Description: Sandstone and conglomerate, rarely forms prominent outcrops; massive conglomerate is typical near base of unit and locally in upper part. These deposits are nonmarine except in southeastern Arizona, where prominent gray marine limestone (Mural Limestone) forms the middle of the Bisbee Group. Sandstones are typically medium-bedded, drab brown, lithic-feldspathic arenites. Includes Bisbee Group (largely Early Cretaceous) and related rocks, Temporal, Bathtub, and Sand Wells formations, rocks of Gu Achi, McCoy Mountains Formation, and Upper Cretaceous Fort Crittenden Formation and equivalent rocks. (80-160 Ma)

Lithology: Major:{arenite,conglomerate}, Minor:{limestone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page 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.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 74.
Bryant, D.G. & H.E. Metz (1966), Geology and ore deposits of the Warren mining district, in S.R. Titley and C.L. Hicks (editors), Geology of the porphyry copper deposits, southwestern North America, University of Arizona Press, Tucson: 191, 197-199.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 88 (Table 4).
Blair, Gerry (1992), The Rockhound's Guide to Arizona: Helena, MT, Falcon Press.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Minerals Resources Open File Report 92-10: 5 (Table 1).
Graeme, R. (1993), Bisbee revisited, Mineralogical Record: 24: 421-436.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 160, 162, 203, 220, 245, 344, 386, 388.
Singer, D.A., Berger, V.I., and Moring, B.C. (2005): Porphyry Copper Deposits of the World: Database, Map, and Grade and Tonnage Models. USGS Open-File Report 05-1060.
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 5.
Arizona Bureau of Mines files.
MRDS database Dep. ID file #10046238, MRDS ID #M241102; and, Dep. ID #10137191, MAS ID #0040030044.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2018, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 22, 2018 20:19:57 Page generated: November 17, 2017 18:28:15
Go to top of page