Johnson Hill Mine, Wharton, Morris County, New Jersey, USAi
| Regional Level Types | |
|---|---|
| Johnson Hill Mine | Mine |
| Wharton | Borough |
| Morris County | County |
| New Jersey | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 53' 21'' North , 74° 35' 2'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wharton | 6,613 (2017) | 0.5km |
| Dover | 18,346 (2017) | 1.9km |
| Kenvil | 3,009 (2017) | 3.1km |
| Victory Gardens | 1,532 (2017) | 3.8km |
| Randolph | 25,734 (2017) | 4.6km |
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 |
|---|---|---|
| Morris Museum Mineralogical Society | Morristown, New Jersey | 13km |
| Franklin Ogdensburg Mineralogical Society | Franklin, New Jersey | 25km |
| New Jersey Mineralogical Society, Inc | Mountainside, New Jersey | 31km |
| North Jersey Mineralogical Society, Inc. | Paterson, New Jersey | 35km |
A former Fe occurrence/mine located on the SE slope of the hill NW of Wharton (NOTE: literature states Rockaway Township; however, that twp. is East and NE of Wharton, possibly a mistake for Roxbury Twp.), on private land. Started before 1868 and closed 1869. Owned by Garstay Associates, Roseland, NJ. MRDS database stated accuracy for this location is 1,000 meters.
JOHNSON HILL MINE [Not located]
The Johnson Hill mine, said to be on the southeast slope of the hill west of Wharton (Bayley, 1910, p. 368), was not located by the writer. Some of the shallow prospect pits on the southwest extension of the Huff deposits, however, may be on the Johnson Hill property.
According to Bayley (1910, p. 368), "there were reported to be some remarkable faults crossing the vein, but they have not been described because of lack of definite information concerning their character." It is possible that these faults are related to the Rockaway River fault (pl. 1) which is inferred to cross the line of projection of the Huff deposits near the tracks of the Delaware Lackawanna and Western Railroad.
The Johnson Hill mine, said to be on the southeast slope of the hill west of Wharton (Bayley, 1910, p. 368), was not located by the writer. Some of the shallow prospect pits on the southwest extension of the Huff deposits, however, may be on the Johnson Hill property.
According to Bayley (1910, p. 368), "there were reported to be some remarkable faults crossing the vein, but they have not been described because of lack of definite information concerning their character." It is possible that these faults are related to the Rockaway River fault (pl. 1) which is inferred to cross the line of projection of the Huff deposits near the tracks of the Delaware Lackawanna and Western Railroad.
Mineralization is a magnetite deposit hosted in Neoproterozoic gneiss. The ore body is 1.83 meters (6 feet) wide. Faults cross the ore body. Local rocks include microperthite alaskite/Biotite-quartz-oligoclase gneiss.
Workings include surface and underground openings with an overall length of 274.32 meters. Many small and several large pits and trenches were excavated over a distance of 900 feet. Several shafts were filled with garbage.
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
2 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:
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Other Databases
| Link to USGS MRDS: | 10021809 |
|---|---|
| Link to USGS MRDS: | 10247165 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Appalachian BasinBasin
- Laurentides DomainPassive Margin
USA
- New Jersey
- Dover Mining DistrictMining District
- New Jersey HighlandsComplex
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References
Bayley, William S. (1910) Final Report of the State Geologist Vol. 7 - Iron Mines and Mining in N.J. Geological Survey of New Jersey. p.368
Johnson Hill Mine, Wharton, Morris County, New Jersey, USA