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Cotton prospect, Warren, Grafton County, New Hampshire, USAi
| Regional Level Types | |
|---|---|
| Cotton prospect | Prospect |
| Warren | Township |
| Grafton County | County |
| New Hampshire | State |
| USA | Country |
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Latitude & Longitude (WGS84):
43° 54' 33'' North , 71° 53' 51'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Warren | 930 (2017) | 1.6km |
| Wentworth | 850 (2017) | 4.4km |
| Rumney | 1,576 (2017) | 13.4km |
| Piermont | 755 (2017) | 16.1km |
| Dorchester | 376 (2017) | 17.4km |
Other/historical names associated with this locality:
Tilly's Last Chance
The face of a 6- to 8-foot cliff has been blasted off, exposing pegmatite for about 35 feet on strike. Only the hanging wall of the pegmatite is exposed. It strikes N. 70° W. and has a nearly vertical dip. Its thickness is unknown, but is probably only a few feet. The country rock is coarse grained biotite-plagioclase gneiss with a foliation striking N. 35° W. and dipping 25° NE. The pegmatite consists of perthite, quartz, moscovite, and plagioclase with accessory garnet and pyrite. The part of the dike adjacent to the gneiss wall is rich in quartz and contains muscovite and plagioclase. Perthite appears to make up the central part of the dike.
Muscovite occurs in small ruby-colored books, some of it flat and hard, but most of it soft, ruled, and tanglesheet. Mica is most abundant against the gneiss wall, but some occurs adjacent to the perthite.
Muscovite occurs in small ruby-colored books, some of it flat and hard, but most of it soft, ruled, and tanglesheet. Mica is most abundant against the gneiss wall, but some occurs adjacent to the perthite.
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
3 valid minerals.
Detailed Mineral List:
| ⓘ 'Feldspar Group' |
| ⓘ 'Feldspar Group var. Perthite' |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
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 | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'var. Perthite' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
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