Tamarack Junior Mine (Tamarack Jr. Mine), Centennial Heights, Calumet Township, Houghton County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Tamarack Junior Mine (Tamarack Jr. Mine) | Mine |
| Centennial Heights | Unincorporated Community |
| Calumet Township | Township |
| Houghton County | County |
| Michigan | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 15' 33'' North , 88° 26' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Calumet | 703 (2017) | 1.5km |
| Laurium | 1,941 (2017) | 2.5km |
| Copper City | 187 (2017) | 5.4km |
| Ahmeek | 146 (2017) | 5.9km |
| Lake Linden | 989 (2017) | 7.9km |
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 | 16km |
Mindat Locality ID:
124026
Long-form identifier:
mindat:1:2:124026:2
GUID (UUID V4):
f9e298f6-1247-4c4f-b5e9-982a80187ed9
Commodities (Major) - Copper
Deposit Type: Lode
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Calumet And Hecla Conglomerate, Portage Lake Volcanics
Host Rock: Conglomerate
An underground copper mine consisting of two shafts located near Calumet. The Tamarack Jr. was a company that was affiliated with the Tamarack Mining Company and began exploration of the western boundary with the Centennial Mining Company in 1882. The rich Calumet Conglomerate was discovered through diamond drilling at approximately 3,000 feet depth and work began around 1884 on sinking two shafts to reach the ore. Once the shafts reached the conglomerate, considerable drifting and stoping was done with negative results. It was discovered that this portion of the conglomerate was very poor in copper and all work was idled in 1895. The Osceola Mining Company took over the mine in 1897 and then was absorbed by Calumet and Hecla in 1902. No further activity is noted after this point. Some copper can be found at what is left of the rock piles.
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:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Chlorite Group' References: |
| ⓘ Copper Formula: Cu |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ 'K Feldspar' |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 References: |
| ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O References: |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 References: |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Copper | 1.AA.05 | Cu |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'K Feldspar' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Cu | Copper | |
| Cu | ⓘ Copper | Cu |
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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References
