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Koch asbestos deposit, Converse County, Wyoming, USAi
Regional Level Types
Koch asbestos depositDeposit
Converse CountyCounty
WyomingState
USACountry

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Latitude & Longitude (WGS84):
42° 39' 23'' North , 106° 3' 23'' West
Latitude & Longitude (decimal):
42.65666,-106.05643
GeoHash:
G#: 9xsddtkj4
GRN:
N29W57
Type:
Deposit
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Meadow Acres198 (2011)22.6km
Casper Mountain401 (2011)23.7km
Brookhurst185 (2011)26.7km
Glenrock2,598 (2017)27.3km
Evansville2,931 (2017)28.5km
Mindat Locality ID:
7164
Long-form identifier:
mindat:1:2:7164:5
GUID (UUID V4):
0


(sec. 15, T. 31 N., R. 77 W.), 20 miles SW of Glenrock.
Asbestos deposit is "on the north side of the West Fork of Deer Creek. A serpentine lens 1,500 ft. by 500 ft. trends northeast. There are several smaller lenses; all are surrounded by granite. A small amount of amphibole asbestos, one chrysotile veinlet, 1/4-in. wide, and two vermiculite lenses have been reported." (Bull. 50, p. 8)
"Serpentine is in contact with granite pegmatite dikes; the border zones contain vermiculite up to 8 in. wide." (Bull. 50, p. 235)


Commodity: Former MAS record 0560090286 (newMRDS 10157676, merged and deleted) erroneously listed the commodity as pumice.

Deposit: Asbestos deposit is "on the north side of the West Fork of Deer Creek. A serpentine lens 1,500 ft. by 500 ft. trends northeast. There are several smaller lenses; all are surrounded by granite. A small amount of amphibole asbestos, one chrysotile veinlet, 1/4-in. wide, and two vermiculite lenses have been reported." (Bull. 50, p. 8) Serpentine is in contact with granite pegmatite dikes; the border zones contain vermiculite up to 8 in. wide. (Bull. 50, p. 235)

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


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
ⓘVermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Unclassified
ⓘ'Asbestos'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
AlAluminium
Alⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
SiSilicon
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
FeIron
Feⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O

Other Databases

Link to USGS MRDS:10133260

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

Wilson, W.H., (1966), WYO GEOLogical SURVEY BULL. 50, p. 8, 235.
Hausel, W. Dan, Jacobson, Mark (2001) Wyoming Mineral Locality Index. Rocks & Minerals, 76 (6) 380-393 doi:10.1080/00357520109603245p.385
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