Berkshire Copper Mine, Berkshire, Franklin County, Vermont, USAi
| Regional Level Types | |
|---|---|
| Berkshire Copper Mine | Mine |
| Berkshire | Township |
| Franklin County | County |
| Vermont | State |
| USA | Country |
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Latitude & Longitude (WGS84):
44° 59' 40'' North , 72° 45' 50'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Richford | 1,361 (2017) | 7.3km |
| Enosburg Falls | 1,305 (2017) | 10.3km |
| Montgomery | 1,195 (2017) | 14.2km |
| Dunham | 3,471 (2016) | 15.7km |
| Sutton | 3,805 (2016) | 16.5km |
Mindat Locality ID:
17258
Long-form identifier:
mindat:1:2:17258:6
GUID (UUID V4):
eea7dd7f-f679-4d30-9eec-5d50200a3572
Other/historical names associated with this locality:
Boston Mining Company Mine, Vermont and Boston Copper Mining Company Mine
A copper mine located about 1Β½ miles North of Berkshire. Started 1899 and closed 1906. Workings featured 85 feet of drifts (tunnels) and a 100 foot deep shaft.
The Berkshire Copper Mine was operated by the Vermont and Boston Mining Company sometime ago. It is reached by going north 1 1/2 miles from Berkshire and taking a sharp right turn on a narrow dirt road. Proceed .3 miles on this road to a turn to the left where cars can be parked. Follow the turn-off road northwest (it is very faint or has disappeared) across the field to the tree-covered dumps.
Very rich specimens of bornite and chalcopyrite can be found on the dumps, also secondary copper minerals including malachite and azurite are present as thin coatings.
This mine is in the Tibbit Hill volcanics, which are a fine-grained, chlorite-albite-epidote rock formed from the metamorphism of an original basic volcanic rock. The bornite and chalcopyrite are hydrothermal in origin and the malachite and azurite are thin films on the rock resulting from the weathering of the bornite and chalcopyrite. It is interesting to note that pyrite and pyrrhotite which are found in most of the other copper mines in Vermont are absent here.
Very rich specimens of bornite and chalcopyrite can be found on the dumps, also secondary copper minerals including malachite and azurite are present as thin coatings.
This mine is in the Tibbit Hill volcanics, which are a fine-grained, chlorite-albite-epidote rock formed from the metamorphism of an original basic volcanic rock. The bornite and chalcopyrite are hydrothermal in origin and the malachite and azurite are thin films on the rock resulting from the weathering of the bornite and chalcopyrite. It is interesting to note that pyrite and pyrrhotite which are found in most of the other copper mines in Vermont are absent here.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Azurite Formula: Cu3(CO3)2(OH)2 |
| β Bornite Formula: Cu5FeS4 |
| β Chalcopyrite Formula: CuFeS2 |
| β Malachite Formula: Cu2(CO3)(OH)2 |
| β Melanterite Formula: Fe2+(H2O)6SO4 · H2O References: |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 References: |
| β Pyrite Formula: FeS2 References: |
| β Pyrrhotite Formula: Fe1-xS References: |
| β Quartz Formula: SiO2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Bornite | 2.BA.15 | Cu5FeS4 |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrrhotite | 2.CC.10 | Fe1-xS |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Melanterite | 7.CB.35 | Fe2+(H2O)6SO4 Β· H2O |
| Group 9 - Silicates | |||
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Azurite | Cu3(CO3)2(OH)2 |
| H | β Malachite | Cu2(CO3)(OH)2 |
| H | β Melanterite | Fe2+(H2O)6SO4 · H2O |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | β Azurite | Cu3(CO3)2(OH)2 |
| C | β Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | β Azurite | Cu3(CO3)2(OH)2 |
| O | β Malachite | Cu2(CO3)(OH)2 |
| O | β Melanterite | Fe2+(H2O)6SO4 · H2O |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Quartz | SiO2 |
| Al | Aluminium | |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Bornite | Cu5FeS4 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Melanterite | Fe2+(H2O)6SO4 · H2O |
| S | β Pyrite | FeS2 |
| S | β Pyrrhotite | Fe1-xS |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | β Bornite | Cu5FeS4 |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Melanterite | Fe2+(H2O)6SO4 · H2O |
| Fe | β Pyrite | FeS2 |
| Fe | β Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | β Azurite | Cu3(CO3)2(OH)2 |
| Cu | β Bornite | Cu5FeS4 |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10084676 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Appalachian BasinBasin
- Laurentides DomainDomain
- Quebec basinBasin
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References
