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State Line Kimberlite Mining District, Albany County, Wyoming, USAi
Regional Level Types
State Line Kimberlite Mining DistrictMining District
Albany CountyCounty
WyomingState
USACountry

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Latitude & Longitude (WGS84):
41° North , 105° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~94km
GRN:
N28W58
Type:
Mining District
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
7134
Long-form identifier:
mindat:1:2:7134:8
GUID (UUID V4):
0


The State Line Kimberlite Diamond district straddles the Wyoming and Colorado border.

(T. 12 N., R. 72 W.), 24 miles S of Laramie on U.S. 287, W of road just N of Colorado border, includes the Aultman, Ferris, and Schaffer kimberlite diatremes.

The district also includes the Sloan kimberlite pipes in Colorado.


Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

3 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Diamond
Formula: C
Localities: Reported from at least 9 localities in this region.
Description: Diopside (chromian) Picroilmenite (magnesium ilmenite) Pyrope (pyrope-almandine megacrysts to 5 inches across)
ⓘ Diopside
Formula: CaMgSi2O6
Description: Diopside (chromian) Picroilmenite (magnesium ilmenite) Pyrope (pyrope-almandine megacrysts to 5 inches across)
ⓘ Pyrope
Formula: Mg3Al2(SiO4)3
Description: Diopside (chromian) Picroilmenite (magnesium ilmenite) Pyrope (pyrope-almandine megacrysts to 5 inches across)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘDiamond1.CB.10aC
Group 9 - Silicates
ⓘPyrope9.AD.25Mg3Al2(SiO4)3
ⓘDiopside9.DA.15CaMgSi2O6

List of minerals for each chemical element

CCarbon
Cⓘ DiamondC
OOxygen
Oⓘ DiopsideCaMgSi2O6
Oⓘ PyropeMg3Al2(SiO4)3
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ PyropeMg3Al2(SiO4)3
AlAluminium
Alⓘ PyropeMg3Al2(SiO4)3
SiSilicon
Siⓘ DiopsideCaMgSi2O6
Siⓘ PyropeMg3Al2(SiO4)3
CaCalcium
Caⓘ DiopsideCaMgSi2O6

Localities in this Region

USA

Other Regions, Features and Areas that Intersect

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

Hausel, W.D. (1984) Diamond-Bearing Kimberlite Pipes in Wyoming and Colorado. Geological Survey of Wyoming, 8 pages.
Hausel, W. Dan, Jacobson, Mark (2001) Wyoming Mineral Locality Index. Rocks & Minerals, 76 (6) 380-393 doi:10.1080/00357520109603245
Hausel, W.D. (2007) Diamonds & Mantle Source Rocks in the Wyoming Craton (with discussions on the North American Craton & unconventional source terrains). Wyoming State Geological Survey, 93 pages.
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