Star Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Star Mine | Mine |
| Copper Harbor | Unincorporated Community |
| Grant Township | Township |
| Keweenaw County | County |
| Michigan | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 26' 16'' North , 87° 51' 42'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copper Harbor | 108 (2017) | 4.0km |
Mindat Locality ID:
23383
Long-form identifier:
mindat:1:2:23383:2
GUID (UUID V4):
5e7adeb7-df3c-470e-a2fe-d926948f58c6
An underground copper mine consisting of four shafts and two adits located southeast of Copper Harbor, or one mile south of the Clark Mine. The Star Copper Company was organized in 1851 and began producing copper in 1855. Work was suspended in 1859 but resumed in 1864 due to rising copper prices. Prices dropped again in 1865, forcing the mine to close once again. The mine reopened briefly in 1872 and again in 1881 but closed permanently in 1882. The company remained organized in hopes of reopening the mine but never did. The property was sold around 1908 to Calumet & Hecla Mining Co. As with Clark Mine, datolite is the main attraction here, and some very nice specimens can still be found on the rock piles. Prehnite and copper can also be found here. Beware, however, that the piles are covered with 120+ years of overgrowth, so finding them can be tricky.
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:
| β Copper Formula: Cu |
| β Datolite Formula: CaB(SiO4)(OH) |
| β Prehnite Formula: Ca2Al2Si3O10(OH)2 |
| β Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Copper | 1.AA.05 | Cu |
| Group 9 - Silicates | |||
| β | Zircon | 9.AD.30 | Zr(SiO4) |
| β | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| β | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Datolite | CaB(SiO4)(OH) |
| H | β Prehnite | Ca2Al2Si3O10(OH)2 |
| B | Boron | |
| B | β Datolite | CaB(SiO4)(OH) |
| O | Oxygen | |
| O | β Datolite | CaB(SiO4)(OH) |
| O | β Prehnite | Ca2Al2Si3O10(OH)2 |
| O | β Zircon | Zr(SiO4) |
| Al | Aluminium | |
| Al | β Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | Silicon | |
| Si | β Datolite | CaB(SiO4)(OH) |
| Si | β Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | β Zircon | Zr(SiO4) |
| Ca | Calcium | |
| Ca | β Datolite | CaB(SiO4)(OH) |
| Ca | β Prehnite | Ca2Al2Si3O10(OH)2 |
| Cu | Copper | |
| Cu | β Copper | Cu |
| Zr | Zirconium | |
| Zr | β Zircon | Zr(SiO4) |
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
