An elevated sea stack that was leveled by quarrying and no longer exists, with the site covered by a retirement home. Late Jurassic blueschist was obtained there and used to construct the Coquille River Jetty in Bandon, where samples can be seen (but not collected). The blueschist was part of a tectonic mélange formed in subduction zone, and metamorphosed under high-pressure, low-temperature conditions.
Photo: Norman King
| 'Actinolite-Tremolite Series'|
6 entries listed. 3 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Alt, D., and Hyndman, D., 1978, Roadside Geology of Oregon: Missoula, Mountain Press. (See p. 97-98 for blueschist at Bandon jetty.)
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Locality Updated: Pint's Quarry, Raymond, Black Hawk Co., Iowa, USAFrom E. L. Clopton, 9th Mar 2014 17:32:31