Sheldon-Columbian Mine, Houghton, Houghton County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Sheldon-Columbian Mine | Mine |
| Houghton | City |
| Houghton County | County |
| Michigan | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 6' 59'' North , 88° 33' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Houghton | 7,970 (2017) | 0.7km |
| Hancock | 4,555 (2017) | 1.7km |
| Dollar Bay | 1,082 (2017) | 4.0km |
| South Range | 746 (2017) | 7.9km |
| Hubbell | 946 (2017) | 12.0km |
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 | 4km |
In June of 1864, the Sheldon Mining Company and the Columbian Mining Company merged, forming the Sheldon and Columbian Copper Company. At the time of the merger, the Columbian had two working shafts; the Sheldon five. After the merger, three of the shafts were closed and used for winzes to connect operating levels of the mine. The remaining four were named Stewert No. 1, Stebbins No. 2, Banker No. 3, and Bloodgood No. 4 (thought to be the mine captains at the time of merger). The mine worked the Isle Royale lode, which was known at the time to be rich in copper and silver. Operations continued until 1870 when erratic mineralization of the lode at depth forced the company to close. Since the opening of the Sheldon in 1853, 1,463,000 lbs. of copper were mined from this location. Copper crystals, silver, datolite, and chalcocite can be found here.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities11 valid minerals.
Detailed Mineral List:
| ⓘ Algodonite Formula: (Cu1-xAsx) |
| ⓘ Calcite Formula: CaCO3 Localities: Habit: Massive Colour: white Fluorescence: none Description: Calcite is a common mineral in the Sheldon-Columbian mine. |
| ⓘ Datolite Formula: CaB(SiO4)(OH) Habit: nodules and veins of pale white datolite. Colour: white Fluorescence: none Description: In May 2014 a 10 year old boy discovered a "nest" of a mineral that turned out to be datolite on the eastern side of the rock pile. he found several small nodules that were identified as datolite. References: |
| ⓘ Domeykite Formula: Cu3As References: |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Habit: massive light green epidote Colour: green Fluorescence: none Description: massive epidote. Collected May 22 2014 References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Silver Formula: Ag References: |
| ⓘ Olivenite Formula: Cu2(AsO4)(OH) |
| ⓘ Quartz Formula: SiO2 Fluorescence: none Description: Previous entry made for find at Grand Portage Mine dump about 350 meters southwest. The dump was mistaken for the Sheldon-Columbian Mine. Although never officially recorded, it is doubtless that quartz occurs at the Sheldon-Columbian Mine due to its placement on the Isle Royale lode. |
| ⓘ Quartz var. Milky Quartz Formula: SiO2 Habit: cluster of milky quartz crystals Colour: white References: |
| ⓘ Tenorite Formula: CuO Localities: Habit: black coating on copper Colour: black Fluorescence: none Description: Pieces of copper and datolite vein pieces with a black coating has been found by Yalmer Primeau on May 17 2014. Visually identified by him as tenorite |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Algodonite | 2.AA.10a | (Cu1-xAsx) |
| ⓘ | Domeykite | 2.AA.10b | Cu3As |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Milky Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Olivenite | 8.BB.30 | Cu2(AsO4)(OH) |
| Group 9 - Silicates | |||
| ⓘ | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Datolite | CaB(SiO4)(OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Olivenite | Cu2(AsO4)(OH) |
| B | Boron | |
| B | ⓘ Datolite | CaB(SiO4)(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Datolite | CaB(SiO4)(OH) |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Olivenite | Cu2(AsO4)(OH) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Quartz var. Milky Quartz | SiO2 |
| Al | Aluminium | |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Datolite | CaB(SiO4)(OH) |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Milky Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Datolite | CaB(SiO4)(OH) |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Cu | Copper | |
| Cu | ⓘ Algodonite | (Cu1-xAsx) |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Domeykite | Cu3As |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Cu | ⓘ Tenorite | CuO |
| As | Arsenic | |
| As | ⓘ Algodonite | (Cu1-xAsx) |
| As | ⓘ Domeykite | Cu3As |
| As | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
Localities in this Region
- Michigan
- Houghton County
- Houghton
- Sheldon-Columbian Mine
- Houghton
- Houghton County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mid-continent DomainDomain
- Mid-continent RiftNarrow Rift
USA
- Michigan
- Keweenaw PeninsulaPeninsula
- Midcontinent RiftGeologic Province
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References
Sheldon-Columbian Mine, Houghton, Houghton County, Michigan, USA