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Dutro Mine (Old Dominion), Blue Cloud Mining District, Lewis and Clark County, Montana, USAi
Regional Level Types
Dutro Mine (Old Dominion)Mine
Blue Cloud Mining DistrictMining District
Lewis and Clark CountyCounty
MontanaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
46° 35' 33'' North , 112° 9' 38'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Helena West Side1,637 (2011)3.7km
Helena30,581 (2017)9.5km
Helena Valley West Central7,883 (2011)10.9km
South Hills517 (2017)13.1km
Helena Valley Northwest3,482 (2011)16.9km
Mindat Locality ID:
161216
Long-form identifier:
mindat:1:2:161216:8
GUID (UUID V4):
9833863d-711d-4e20-b7dd-5e81efed08f9


REF:Deposit:: USGS BULL 527, P. 101-02.
Deposit:: USGS BULL 842, P. 211.
Commodities (Major) - Gold; (Trace) - Tin, Bismuth
Development Status: Past Producer
Structure: Boulder Batholith, Series Of Paleozoic Limestone And Dolomite Standing On Edge Trending North-South Near End Of An Intrusion Of Fine Grained Diorite Whose Long Axis Is 1/4 Mile, And Parallels Strike Of Paleozoic Rocks
Host Rock: Dolomite

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


5 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
β“˜Opal4.DA.10SiO2 Β· nH2O
β“˜Cassiterite4.DB.05SnO2
Group 5 - Nitrates and Carbonates
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
β“˜Tremolite9.DE.10β—»Ca2Mg5(Si8O22)(OH)2
Unclassified
β“˜'Jasper'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ OpalSiO2 · nH2O
Hβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CCarbon
Cβ“˜ DolomiteCaMg(CO3)2
OOxygen
Oβ“˜ CassiteriteSnO2
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ OpalSiO2 · nH2O
Oβ“˜ QuartzSiO2
Oβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
MgMagnesium
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
SiSilicon
Siβ“˜ OpalSiO2 · nH2O
Siβ“˜ QuartzSiO2
Siβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CaCalcium
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
SnTin
Snβ“˜ CassiteriteSnO2

Other Databases

Link to USGS MRDS:10015862

Other Regions, Features and Areas containing this locality

North America
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.
 
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