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

Lake Ellen Kimberlite prospect, Lake Ellen, Iron Co., Michigan, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 46° 10' 28'' North , 88° 10' 36'' West
Latitude & Longitude (decimal): 46.1747222222, -88.1766666667

An exposure of an 18-acre diatreme of tuffaceous kimberlite breccia, located along a logging road west of Lake Ellen. Discovered in 1971, this is the first- and best-known of more than 20 kimberlite bodies that have been discovered in northern Michigan. Most are concentrated in a belt extending from this locality to Hermansville to the southwest. None have proven to be economically viable sources of diamond, however, microscopic diamonds have been found.

The Lake Ellen kimberlite was intruded into the surrounding Proterozoic Hemlock Volcanics formation approximately 180 MYA. In addition to occasional eclogitic mantle xenoliths, Ordovician limestone xenoliths are common among the rubbly, greenish-gray kimberlite breccia. The nearest outcrops of this limestone are 40 miles east, indicating that the formations once extended west to Lake Ellen.

Mineral List

13 valid minerals.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

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.


Cannon, W., Murdrey, M. (1981) "The Potential for Diamond-Bearing Kimberlite in Northern Michigan and Wisconsin," USGS Circular No. 842.

Chartier, T. (1985) "The Texture and Mineralogy of the Lake Ellen Kimberlite, Crystal Falls, Michigan, USA", Abstract from 31st Annual Meeting of the Institute of Lake Superior Geology.

Jarvis, W. (1993) "Michigan Kimberlites: An Update", Abstract at Prospectors and Developers Association of Canada 61st Annual Meeting, Paper M-10.

Chartier, T. (editor) (1993) "Diamond-Bearing Kimberlite and Related Geology in the Upper Peninsula of Michigan", Michigan Basin Geological Society.

Janse (Bram), A. J. A., Sheahan, P. A. (1995) "Catalogue of World Wide Diamond and Kimberlite Occurrences: A Selective and Annotative Approach", Journal of Geochemical Exploration: 53: 73-111.

External Links

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 21, 2018 01:12:01 Page generated: July 27, 2017 16:05:59
Go to top of page