Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Gypsum from
Last Chance Mine, Last Chance-Copper Coin Mine group (Smith Mine), Barry M. Goldwater Air Force Range, Copper Mountains, La Posa Mining District (Wellton Mining District; Wellton Hills Mining District), Wellton Hills-Copper Mountains, Yuma County, Arizona, USA


Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Last Chance Mine, Last Chance-Copper Coin Mine group (Smith Mine), Barry M. Goldwater Air Force Range, Copper Mountains, La Posa Mining District (Wellton Mining District; Wellton Hills Mining District), Wellton Hills-Copper Mountains, Yuma County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:172242
Long-form Identifier:1:3:172242:0
GUID (UUID V4):0
Nearest other occurrences of Gypsum
0.0km (0.0 miles) ⓘCopper Coin Mine, Last Chance-Copper Coin Mine group (Smith Mine), Barry M. Goldwater Air Force Range, Copper Mountains, La Posa Mining District (Wellton Mining District; Wellton Hills Mining District), Wellton Hills-Copper Mountains, Yuma County, Arizona, USA
30.5km (18.9 miles) ⓘGila Mountains Mica deposit, Fortuna Mine area, Barry M. Goldwater Air Force Range, Fortuna Mining District (La Fortuna Mining District), Yuma County, Arizona, USA
34.4km (21.4 miles) ⓘRed Knob Mine (Red Knob prospect; Red Knob claims), Muggins Mountains uranium prospects, Muggins Mining District, Muggins Mountains, Yuma County, Arizona, USA
35.6km (22.1 miles) ⓘRed Cross Mine (Norton Mine), Barry M. Goldwater Air Force Range, Mohawk Mining District, Mohawk Mountains, Yuma County, Arizona, USA
39.4km (24.5 miles) ⓘVenegas prospect, Tule Mountains, Barry M. Goldwater Air Force Range, La Posa Mining District (Wellton Mining District; Wellton Hills Mining District), Wellton Hills-Copper Mountains, Yuma County, Arizona, USA
49.4km (30.7 miles) ⓘIndia Mine (India claim), Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
49.4km (30.7 miles) ⓘTraeger Mine (Traeger prospect; Agate Mine), Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
49.4km (30.7 miles) ⓘLas Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
49.5km (30.8 miles) ⓘGolden Queen Mine, Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
49.8km (30.9 miles) ⓘPandino Mine (Pandino claim; Panadero Mine), Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
References
Wilson,E.D. (1933): 167
(n.d.) ADMMR Mines Database, Arizona Geological Survey.
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 17:09:19
Go to top of page