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Sheldon Mine, Sheldon-Columbian Mine, Houghton, Houghton County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Sheldon Mine | Mine |
| 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 |
An underground copper mine, the Sheldon Mining Company began operation in 1853. Two shafts were sunk, one on the Isle Royale lode, the other on the Portage lode. An adit was also driven to one of the shafts. Initial work consisted of eight miners and three surfacemen. Hoisting from the shafts was done by horse drawn whims and kibble buckets. The ore was rich in copper and usually accompanied by silver. In 1864, the company merged with the Columbian Mining Company to form the Sheldon and Columbian Copper Company. Some copper and silver 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 at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
| ⓘ Calcite Formula: CaCO3 Habit: dog tooth spar crystals, massive Colour: white, clear Fluorescence: none Description: Calcite is a common mineral at the Sheldon Mine, some are found together with copper. References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Habit: Lime green sprays of malachite on a calcite Colour: lime green References: |
| ⓘ Native Copper Formula: Cu References: |
| ⓘ Tenorite ? Formula: CuO Habit: Coating on rock Colour: black Fluorescence: none Description: Black coating forming on rock. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Tenorite ? | 4.AB.10 | CuO |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Tenorite | CuO |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Cu | Copper | |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tenorite | CuO |
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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