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
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch 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 Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

South Rasmussen Ridge Phosphate Mine, Soda Springs, Caribou Co., Idaho, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 42° 51' North , 111° 21' West
Latitude & Longitude (decimal): 42.85000,-111.35000
Köppen climate type:Dfb : Warm-summer humid continental climate

phosphoria formation.

Mineral List

13 valid minerals. 1 (TL) - type locality of 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

Permian - Pennsylvanian
252.17 - 323.2 Ma

ID: 2754564
Sedimentary rocks (Permian and Pennsylvanian)

Age: Paleozoic (252.17 - 323.2 Ma)

Stratigraphic Name: Phosphoria Formation; Wells Formation; Quadrant Formation; Amsden Formation; Shedhorn Formation; Snaky Canyon Formation; Sun Valley Group; Oquirrh Group

Description: Marine phosphorite, shale, and chert of Phosphoria Formation, fine-grained sandstone and mudrock of Wells, Quadrant, Amsden, and Shedhorn formations, and fine-grained sandstone, carbonaceous mudstone, and limestone of the Snaky Canyon Formation and Sun Valley and Oquirrh groups. Located in south-central and eastern Idaho. (Paleocene to Neoproterozoic Sedimentary and Igneous Rocks of the Cordilleran System).

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.


Kampf, A. R., Nash, B. P., Loomis, T. A. (2012) Phosphovanadylite-Ca, IMA 2011-101. CNMNC Newsletter No. 13, June 2012, page 809 [Mineralogical Magazine: 76: 807-817].

Kampf, A. R., Nash, P., and Loomis, T. A. (2013), Phosphovanadylite-Ca, Ca[V#4#+^4P^2O^8(OH)^8.12H^2O, the Ca analogue of phosphovanadylite-Ba. American Mineralogist: 98: 439-443.

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 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 20, 2017 17:19:17 Page generated: October 17, 2017 02:47:05
Go to top of page