ID: 633
rec_id: 633
site_name: Keystone quarry
oremin: clinochrysotile, amphibole asbestos
devel: occurrence
json: {"id":"http:\/\/mrdata.usgs.gov\/asbestos\/record\/633","type":"Feature","geometry":{"type":"Point","coordinates":[-76.053470484594,39.725208702887]},"properties":{"state":"PA","county":"Chester","site_name":"Keystone quarry","devel":"occurrence","latitude":"39.7251","longitude":"-76.0538","oremin":"clinochrysotile, amphibole asbestos","assocmin":"lizardite, talc, olivine, actinolite, pyroxene, chromite, magnetite","hostrock":"metaperidotite","source":"ofr20051189","mineral":[{"role":"asbestos","name":"chrysotile"},{"role":"asbestos","name":"clinochrysotile"},{"role":"associated","name":"lizardite"},{"role":"associated","name":"talc"},{"role":"associated","name":"olivine"},{"role":"associated","name":"actinolite"},{"role":"associated","name":"pyroxene"},{"role":"associated","name":"chromite"},{"role":"associated","name":"magnetite"}],"reference":[{"citation":"Pearre and Heyl (1960, p. 815-816, plate 41)","onlink":"http:\/\/pubs.er.usgs.gov\/publication\/b1082K","source":"ofr20051189","reference":"Pearre, N.C., and Heyl, A.V., Jr., 1960, Chromite and other mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania, and Delaware: U.S. Geological Survey Bulletin 1082-K, p. 707-833, plates 40-47."},{"citation":"Faust and Fahey (1962, p. 11)","onlink":"http:\/\/pubs.er.usgs.gov\/publication\/pp384A","source":"ofr20111188","reference":"Faust, G.T., and Fahey, J.J., 1962, The serpentine-group minerals: U.S. Geological Survey Professional Paper 384-A, 92 p."},{"citation":"Geyer and others (1976, p. 87-91)","source":"ofr20051189","reference":"Geyer, A.R., Smith, R.C., II, and Barnes, J.H., 1976, Mineral collecting in Pennsylvania [4th ed.]: Pennsylvania Department of Environmental Resources, Topographic and Geologic Survey, General Geology Report 33, 260 p."},{"citation":"Puffer and others (1980)","source":"ofr20051189","reference":"Puffer, J.H., Germine, M., Hurtubise, D.O., Mrotek, K.A., and Bello, D.M., 1980, Asbestos distribution in the Central Serpentine District of Maryland-Pennsylvania: Environmental Research, v. 23, p. 233-246."}]}}
url: https://mrdata.usgs.gov/asbestos/show-asbestos.php?rec_id=633