Rhode Island Mine, Boston, Franklin Township, Houghton County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Rhode Island Mine | Mine |
| Boston | Unincorporated Community |
| Franklin Township | Township |
| Houghton County | County |
| Michigan | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 11' 8'' North , 88° 31' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hubbell | 946 (2017) | 7.0km |
| Dollar Bay | 1,082 (2017) | 7.4km |
| Hancock | 4,555 (2017) | 7.9km |
| Houghton | 7,970 (2017) | 8.0km |
| Laurium | 1,941 (2017) | 8.2km |
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 | 7km |
Introduction
An underground copper mine consisting of three shafts, the deepest was 140 feet and sunk on the Allouez Conglomerate.
History
The "Old" Rhode Island Mining Company was organized in 1860 and worked contemporaneously with the Albany and Boston Mining Company. After no economic mineralization was found, the mine closed in 1865. The copper boom of 1898 resparked interest in the mine and the "New" Rhode Island Mining Company was organized in 1899. Work was restarted on the Allouez Conglomerate in the original shafts until 1906 when the mine closed again. In 1910, the Franklin Mining Company took over operations and quickly abandoned the conglomerate in favor of the richer Pewabic lode, which crossed the property. Work continued sporadically until 1920, when the mine was closed for good.
For the Collector
The mine piles yield fine specimens of copper, epidote, and quartz. Recently, some large analcime crystals were discovered.
Note: coordinates given are for the No. 1 shaft, the easiest to reach.
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
7 valid minerals.
Detailed Mineral List:
| ⓘ Analcime Formula: Na(AlSi2O6) · H2O |
| ⓘ Calcite Formula: CaCO3 References: |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) References: |
| ⓘ Mesolite Formula: Na2Ca2Si9Al6O30 · 8H2O |
| ⓘ Native Copper Formula: Cu References: |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 References: |
| ⓘ Quartz Formula: SiO2 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 | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Mesolite | 9.GA.05 | Na2Ca2Si9Al6O30 · 8H2O |
| ⓘ | Analcime | 9.GB.05 | Na(AlSi2O6) · H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| Al | Aluminium | |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Mesolite | Na2Ca2Si9Al6O30 · 8H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Cu | Copper | |
| Cu | ⓘ Native Copper | Cu |
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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Rhode Island Mine, Boston, Franklin Township, Houghton County, Michigan, USA