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Twilight No. 1 (Twilight #1), Hoskinnini Mesa, Navajo County, Arizona, USAi
Regional Level Types
Twilight No. 1 (Twilight #1)Prospect
Hoskinnini MesaMesa
Navajo CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
36° 57' 44'' North , 110° 18' 52'' West
Latitude & Longitude (decimal):
36.96240,-110.31463
GeoHash:
G#: 9w9d38z3d
GRN:
N25W64
Type:
Prospect
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Oljato-Monument Valley674 (2016)9.4km
Oljato-Monument Valley154 (2017)11.3km
Kayenta5,189 (2011)26.6km
Halchita266 (2011)41.9km
Navajo Mountain354 (2011)42.8km
Mindat Locality ID:
310845
Long-form identifier:
mindat:1:2:310845:4
GUID (UUID V4):
0


An U occurrence/prospect located in approximate sec. 17, T4lN, R19E, G&SRM, about 6.7 km (4.2 miles) ESE of Hoskinnini Mesa (coordinates of record) and 8.1 km (5.0 miles) N of Boot Mesa (coordinates of record), in Monument Valley. The geographic coordinates presented are for the center of sec. 17. This locality is not listed in the USGS MRDS database.

Mineralization is an U deposit hosted in a Shinarump Member of the Chinle Formation paleochannel. The ore body is uraninite in a continuous ore pod 25 feet x 175 feet.

Workings include exploratory drilling (1959).

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


1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘUraninite4.DL.05UO2

List of minerals for each chemical element

OOxygen
Oⓘ UraniniteUO2
UUranium
Uⓘ UraniniteUO2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

U.S. Department of Energy files.
USGS Boot Mesa quadrangle 15 minute topo map.
Marble Canyon NTMS.
Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143. RME-2071: 226.
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