Antigorite from
Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Antigorite | |
| Formula: | Mg3(Si2O5)(OH)4 | |
| Comments: | Serpentine is ubiquitous at Tilly Foster. While early workers tended to refer to serpentine by color, the different colors and habits eventually came to be identified by an extensive, if not cumbersome, assortment of names including: antigorite, bowenite, chrysotile, lizardite, marmolite, picrolite, precious, radiotine, retinalite, and williamsite. Tilly Foster is notable for its abundance and variety of serpentine pseudo-morphs. In addition, massive slickensided serpentine of various colors was readily collected on the dump. | |
| Habit: | massive, also pseudomorphing other minerals | |
| Colour: | gray, pale green to gray-green | |
| Quality for species: | Excellent - world class for species or very significant. (!!) | |
| Abundance at site: | Extremely common | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Associated Minerals Based on Photo Data: | ||
| Magnetite | 16 | |
| Chondrodite | 16 | |
| Clinochlore | 10 | |
| Calcite | 7 | |
| Dolomite | 5 | |
| Talc | 2 | |
| Hematite | 2 | |
| Tremolite | 2 | |
| Brucite | 2 | |
| Serpentine Subgroup | 2 | |
| - var Marmolite | 1 | |
| Dravite | 1 | |
| Lizardite | 1 | |
| Chrysotile | 1 | |
| Lepidocrocite | 1 | |
| Pyrite | 1 | |
| Sphalerite | 1 | |
| Palygorskite | 1 | |
| Biotite | 1 | |
| Enstatite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Antigorite data | |
| Locality Data: | Click here to view Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA | |
| Photo Gallery | View Gallery (20 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 100235 | |
| Long-form Identifier: | 1:3:100235:5 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Antigorite | ||
| 17.8km (11.1 miles) | ⓘOld Quarry Nature Center, Danbury, Fairfield County, Connecticut, USA | |
| 47.4km (29.5 miles) | ⓘO'Neil Mine, Lake Mombasha, Town of Monroe, Orange County, New York, USA | |
| 48.2km (29.9 miles) | ⓘRye, Westchester County, New York, USA | |
| 57.0km (35.4 miles) | ⓘNew Rochelle, Westchester County, New York, USA | |
| 68.2km (42.4 miles) | ⓘRhein Property, Amity, Town of Warwick, Orange County, New York, USA | |
| 72.0km (44.7 miles) | ⓘTaine Mountain, Burlington, Hartford County, Connecticut, USA | |
| 83.0km (51.6 miles) | ⓘMontville serpentine deposit, Montville Township, Morris County, New Jersey, USA | |
| 85.2km (53.0 miles) | ⓘMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA | |
| 85.6km (53.2 miles) | ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA | |
| References | ||
Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA