Amity giant spinel locality, Amity, Town of Warwick, Orange County, New York, USAi
Regional Level Types | |
---|---|
Amity giant spinel locality | Occurrence |
Amity | Hamlet |
Town of Warwick | Town |
Orange County | County |
New York | State |
USA | Country |
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Latitude & Longitude (WGS84):
41° 15' 20'' North , 74° 27' 11'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Vernon Valley | 1,626 (2017) | 3.5km |
Eden | 3,806 (2017) | 5.0km |
Warwick | 6,823 (2017) | 7.8km |
Vernon Center | 1,713 (2017) | 8.6km |
Highland Lake | 4,933 (2017) | 8.8km |
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 |
---|---|---|
Orange County Mineral Society | Middletown, New York | 21km |
North Jersey Mineralogical Society, Inc. | Paterson, New Jersey | 44km |
Mindat Locality ID:
185769
Long-form identifier:
mindat:1:2:185769:9
GUID (UUID V4):
882d892b-7f33-4b6e-86d1-f8908e8861a4
The “giant spinel locality” was one of the earliest mineral collecting sites in the region, dating from the early 19th century. Shepard (1832) described single spinel crystals up to 158 Kg. Kearns (1977) says that this locality, his loc. 29, is also the probable type locality of edenite.
The minerals of the Amity-Edenville area occur almost exclusively in the Franklin Marble, a mid-Proterozoic, granulite facies, calcite-rich metacarbonate. The Franklin Marble contains numerous horizons, often seen as isolated, elongated lenses but sometimes distributed in continuous trends. Some of these horizons are rich in aluminium and are characterized by corundum, spinel and brittle micas. Other, more limited, layers contain boron minerals or are rich in arsenopyrite. In the Amity-Edenville area there is a trend of spinel occurrences beginning at the Henry Rudy Farm and extending southwestward, parallel to the eastern fault boundary of the marble, into New Jersey. The “giant spinel locality” lies on this trend.
There is a voluminous literature concerning the Franklin Marble, including recent papers that have led to a much tighter focus on the timing of geologic events, on the environment of deposition of the marble and on hydrothermal alteration/mineralization associated with post orogenic pegmatites.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Calcite Formula: CaCO3 References: |
ⓘ Chondrodite Formula: Mg5(SiO4)2F2 |
ⓘ Forsterite Formula: Mg2SiO4 |
ⓘ Graphite Formula: C References: |
✪ Spinel Formula: MgAl2O4 Habit: Dominant octahedral crystals to 20 cm. Colour: Black, Gray, Brown Fluorescence: Not fluorescent |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Graphite | 1.CB.05a | C |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
Group 9 - Silicates | |||
ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
ⓘ | Chondrodite | 9.AF.45 | Mg5(SiO4)2F2 |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | ⓘ Calcite | CaCO3 |
C | ⓘ Graphite | C |
O | Oxygen | |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Chondrodite | Mg5(SiO4)2F2 |
O | ⓘ Forsterite | Mg2SiO4 |
O | ⓘ Spinel | MgAl2O4 |
F | Fluorine | |
F | ⓘ Chondrodite | Mg5(SiO4)2F2 |
Mg | Magnesium | |
Mg | ⓘ Chondrodite | Mg5(SiO4)2F2 |
Mg | ⓘ Forsterite | Mg2SiO4 |
Mg | ⓘ Spinel | MgAl2O4 |
Al | Aluminium | |
Al | ⓘ Spinel | MgAl2O4 |
Si | Silicon | |
Si | ⓘ Chondrodite | Mg5(SiO4)2F2 |
Si | ⓘ Forsterite | Mg2SiO4 |
Ca | Calcium | |
Ca | ⓘ Calcite | CaCO3 |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Appalachian BasinBasin
- SCAB DomainDomain
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