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Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USAi
Regional Level Types
Lake Ellen Kimberlite prospectProspect
Lake EllenLake
Mansfield TownshipTownship
Iron CountyCounty
MichiganState
USACountry

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03288140017272059044940.jpg
Prospect Pit

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
06013680017272059045714.jpg
Xenoliths

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
08971440017272059045846.jpg
Kimberlite Breccia

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
03288140017272059044940.jpg
Prospect Pit

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
06013680017272059045714.jpg
Xenoliths

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
08971440017272059045846.jpg
Kimberlite Breccia

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
03288140017272059044940.jpg
Prospect Pit

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
06013680017272059045714.jpg
Xenoliths

Lake Ellen Kimberlite prospect, Lake Ellen, Mansfield Township, Iron County, Michigan, USA
Latitude & Longitude (WGS84):
46° 10' 29'' North , 88° 10' 37'' West
Latitude & Longitude (decimal):
46.17500,-88.17698
GRN:
N31W45
Type:
Prospect
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Crystal Falls1,414 (2017)14.8km
Alpha138 (2017)21.2km
Amasa283 (2017)22.0km
Florence592 (2017)28.7km
Commonwealth403 (2017)29.5km
Mindat Locality ID:
28944
Long-form identifier:
mindat:1:2:28944:2
GUID (UUID V4):
0


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 southeast. 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.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


13 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Clinopyroxene Subgroup'
ⓘ Corundum
Formula: Al2O3
ⓘ Diamond
Formula: C
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ 'Fayalite-Forsterite Series'
ⓘ Forsterite
Formula: Mg2(SiO4)
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ 'Orthopyroxene Subgroup'
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Pyrope
Formula: Mg3Al2(SiO4)3
ⓘ Rutile
Formula: TiO2
ⓘ Sanidine
Formula: K(AlSi3O8)
ⓘ Spinel
Formula: MgAl2O4

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘDiamond1.CB.10aC
Group 4 - Oxides and Hydroxides
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum4.CB.05Al2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘRutile4.DB.05TiO2
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2(SiO4)
ⓘPyrope9.AD.25Mg3Al2(SiO4)3
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘSanidine9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
Cⓘ DiamondC
OOxygen
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ CorundumAl2O3
Oⓘ DiopsideCaMgSi2O6
Oⓘ EnstatiteMg2Si2O6
Oⓘ ForsteriteMg2(SiO4)
Oⓘ IlmeniteFe2+TiO3
Oⓘ KyaniteAl2(SiO4)O
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PyropeMg3Al2(SiO4)3
Oⓘ RutileTiO2
Oⓘ SanidineK(AlSi3O8)
Oⓘ SpinelMgAl2O4
Oⓘ Fayalite-Forsterite Series
Oⓘ Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2(SiO4)
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ PyropeMg3Al2(SiO4)3
Mgⓘ SpinelMgAl2O4
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ CorundumAl2O3
Alⓘ KyaniteAl2(SiO4)O
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ PyropeMg3Al2(SiO4)3
Alⓘ SanidineK(AlSi3O8)
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ ForsteriteMg2(SiO4)
Siⓘ KyaniteAl2(SiO4)O
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ PyropeMg3Al2(SiO4)3
Siⓘ SanidineK(AlSi3O8)
Siⓘ Fayalite-Forsterite Series
Siⓘ Garnet GroupX3Z2(SiO4)3
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ SanidineK(AlSi3O8)
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ DiopsideCaMgSi2O6
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ IlmeniteFe2+TiO3
Feⓘ Fayalite-Forsterite Series

Other Databases

Link to USGS MRDS:10310195

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

Cannon, W., Murdrey, M. (1981) The Potential for Diamond-Bearing Kimberlite in Northern Michigan and Wisconsin. United States Geological Survey Circular 842. 15 pages.
Chartier, T. (1985) The Texture and Mineralogy of the Lake Ellen Kimberlite, Crystal Falls, Michigan, USA. Technical Sessions and Abstracts, Institute on Lake Superior Geology: 31(1): 10-11.
Jarvis, W. (1993) Michigan Kimberlites: An Update. Abstract, Prospectors and Developers Association of Canada: 61: Paper M-10.
Chartier, T. (1993) Diamond-Bearing Kimberlite and Related Geology in the Upper Peninsula of Michigan. Michigan Basin Geological Society Historical Publications Disk 3. 21 pages.
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.
pubs.er.usgs.gov (n.d.) https://pubs.er.usgs.gov/publication/ofr83156
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