Porter Mine (Amasa Porter Mine), Crystal Falls Township, Iron County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Porter Mine (Amasa Porter Mine) | Mine |
| Crystal Falls Township | Township |
| Iron County | County |
| Michigan | State |
| USA | Country |
Porter Mine (Amasa Porter Mine), Menominee Iron Range mining district, Michigan, USA
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Latitude & Longitude (WGS84):
46° 11' 57'' North , 88° 24' 38'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Amasa | 283 (2017) | 4.8km |
| Crystal Falls | 1,414 (2017) | 12.7km |
| Alpha | 138 (2017) | 17.5km |
| Mineral Hills, Iron River | 219 (2017) | 20.6km |
| Stambaugh, Iron River | 1,215 (2017) | 21.2km |
Commodities (Major) - Iron
Deposit Type: Banded Iron-Rich Sedimentary Deposits
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock Unit: Vulcan Iron Formation
Host Rock: Iron Formation
An iron mine operated first by Nevada Mining Co., and later by Hemlock River Mining Co, during 1914 through 1927. 733,327 tons of ore were shipped from workings that reached 850 feet depth. The mine exploited the middle-Precambrian Amasa Iron Formation of the Baraga Group. The property description is N1/2-NE and SE-NE Sec. 22 T44N-R33W, which is 120 acres between N46º11'58", N46º12'11", W88º24'32", and W88º25'9", and between N46º11'45", N46º11'58", W88º24'31", and W88º24'50".
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.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| O | Oxygen | |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Superior Craton
- Penokean OrogenCraton
- Superior DomainDomain
USA
- Michigan
- Menominee Iron Range mining districtMining District
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