Trimountain Mine, Trimountain, Adams Township, Houghton County, Michigan, USAi
Regional Level Types | |
---|---|
Trimountain Mine | Mine |
Trimountain | Unincorporated Community |
Adams Township | Township |
Houghton County | County |
Michigan | State |
USA | Country |
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Latitude & Longitude (WGS84):
47° 3' 19'' North , 88° 39' 12'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
South Range | 746 (2017) | 1.8km |
Hancock | 4,555 (2017) | 9.7km |
Houghton | 7,970 (2017) | 9.8km |
Dollar Bay | 1,082 (2017) | 12.9km |
Hubbell | 946 (2017) | 21.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
Club | Location | Distance |
---|---|---|
Copper Country Rock and Mineral Club | Dollar Bay, Michigan | 13km |
Mindat Locality ID:
25414
Long-form identifier:
mindat:1:2:25414:5
GUID (UUID V4):
4c1e3269-3f58-4336-8a48-eaa67ac00953
Commodities (Major) - Copper
Deposit Type: Lode
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Baltic Amygdaloid, Portage Lake Volcanics
Host Rock: Basalt
An underground copper mine consisting of four shafts near the community of Trimountain. The Trimountain Mining Company was organized in 1899 and worked the Baltic Lode. Shafts at this mine were some of the steepest in the Keweenaw at 70 degrees from horizontal to follow the ore bodies. The mine operated under Trimountain until 1923, when the company was dissolved. Copper Range Consolidated Company took over operations in 1925 and operated the mine until 1930 when it was closed permanently. The Trimountain Mine produced approximately 144 million pounds of refined copper. Some minerals that can be found on the piles include copper, epidote, datolite, and rarely chalcocite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
6 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
β Calcite Formula: CaCO3 |
β Chalcocite Formula: Cu2S References: |
β Copper Formula: Cu |
β Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
β 'K Feldspar' |
β Quartz Formula: SiO2 |
β Silver Formula: Ag References: |
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Copper | 1.AA.05 | Cu |
β | Silver | 1.AA.05 | Ag |
Group 2 - Sulphides and Sulfosalts | |||
β | Chalcocite | 2.BA.05 | Cu2S |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
Group 9 - Silicates | |||
β | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Unclassified | |||
β | 'K Feldspar' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
C | Carbon | |
C | β Calcite | CaCO3 |
O | Oxygen | |
O | β Calcite | CaCO3 |
O | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
O | β Quartz | SiO2 |
Al | Aluminium | |
Al | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | Silicon | |
Si | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcocite | Cu2S |
Ca | Calcium | |
Ca | β Calcite | CaCO3 |
Ca | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Fe | Iron | |
Fe | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Cu | Copper | |
Cu | β Chalcocite | Cu2S |
Cu | β Copper | Cu |
Ag | Silver | |
Ag | β Silver | Ag |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Mid-continent DomainDomain
USA
- Michigan
- Keweenaw PeninsulaPeninsula
- Midcontinent RiftGeologic Province
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