Berkshire Mine, Buck Group, Gaastra, Iron County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Berkshire Mine | Mine |
| Buck Group | Group of Mines |
| Gaastra | City |
| Iron County | County |
| Michigan | State |
| USA | Country |
Berkshire Mine, Buck Group, Menominee Iron Range mining district, Michigan, USA
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
46° 3' 51'' North , 88° 36' 57'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Gaastra | 332 (2017) | 1.0km |
| Caspian | 868 (2017) | 1.3km |
| Stambaugh, Iron River | 1,215 (2017) | 2.1km |
| Iron River | 2,904 (2017) | 3.8km |
| Mineral Hills, Iron River | 219 (2017) | 5.9km |
An iron mine worked from 1908 through 1930 by the Brule Mining Co. In 1944, the mine was consolidated into Pickands Mather & Co.'s Buck Group operation, which operated through 1962. By 1930, three shafts and six levels to 782 feet depth had been developed. Under the Buck Group, the no. 2 shaft was reopened and six more levels were worked to 1280 feet depth.
The Corry "40" mine to the east was operated as part of the Berkshire mine when owned by Brule Mining Co., with all ore raised through a Berkshire shaft. Also, the Cottrell Mine to the west was folded into the Berkshire Mine from 1916 to 1934 after only one year of independent operation.
The property description of the Berkshire Mine proper is SW-NW and NW-SW Sec. 6 T42N-R34W, which is the 80 acres between N46º3'43", N46º4'9", W88º36'42", and W88º37'0".
Commodities (Major) - Iron
Deposit Type: Secondary Enrichment
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock: Iron Formation
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-localities5 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Chlorite Group' |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ 'Mica Group' |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Stilpnomelane Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| Group 9 - Silicates | |||
| ⓘ | Stilpnomelane | 9.EG.40 | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Mica Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| C | Carbon | |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Na | Sodium | |
| Na | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Si | Silicon | |
| Si | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ca | Calcium | |
| Ca | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
Localities in this Region
- Michigan
- Iron County
- Gaastra
- Buck Group
- Gaastra
- Iron County
- Michigan
- Iron County
- Gaastra
- Buck Group
- Berkshire Mine
- Cottrell Mine
- Cottrell exploration
- Cottrell Mine
- Berkshire Mine
- Buck Group
- Gaastra
- Iron County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Minnesota River DomainDomain
- Superior Craton
- Penokean OrogenCraton
USA
- Michigan
- Menominee Iron Range mining districtMining District
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
Berkshire Mine, Buck Group, Gaastra, Iron County, Michigan, USA