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Iron Pass Mining District, Millard County, Utah, USAi
Regional Level Types
Iron Pass Mining DistrictMining District
Millard CountyCounty
UtahState
USACountry

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PhotosMapsSearch
Mindat Locality ID:
284554
Long-form identifier:
mindat:1:2:284554:1
GUID (UUID V4):
396854b9-c9e5-4bef-b3e1-f27ebabfacf6


The Iron Pass mining district is in south-central Millard County about 18 mi northwest of Milford. Bullock (1970) estimates that a few tons of Fe ore have been shipped based on the mine workings in the district.
The Iron Pass district lies in the northern San Francisco Mountains of the Basin and Range Province. The prospects and mine workings are primarily along a gravel road through Iron Mine Pass. Most of the Fe workings are south of the pass and are referred to as the Iron Pass mine (NE1⁄4NE1⁄4 section 23 and NW1⁄4NW1⁄4 section 24, T. 25 S., R. 12 W.). These shallow prospects consist of a series of short inclined shafts, adits, dozer cuts, and a small open cut. The workings all follow minor normal faults cutting Neoproterozoic metasedimentary strata including Black Rock Canyon Limestone and Caddy Canyon Quartzite. Mineralization is generally localized at fault contacts between brown dolomitic limestone and gray quartzite or purplish gray argillite. Mineralization occurs as scattered, narrow 0.5- to 4-ft-wide, massive hematite or goethite pods developed along the faults, fractures, or as thin replacements of favorable carbonate beds. Mineralization includes some Mn (Bullock, 1970). Bullock (1970) reports two samples from these workings average 53.8% Fe and 2.52% Mn. The district also has a couple of smaller, less well described prospects north of the pass.

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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

2 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Unclassified
'Limonite'-

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
OOxygen
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3

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Localities in this Region

Other Regions, Features and Areas that Intersect


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

 
矿物 and/or 产地  
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