Summit Rock, Klamath Co., Oregon, USA

Summit Rock is located approximately 390 meters east of Klamath County's western boundary with Douglas County.
It is an andesitic plug, some 60 meters high by 200 meters in diameter.

GPS coordinates: 10T 0575214 4772131.

NOTE: Material originally thought to be ferrosilite turned out to be enstatite, var. bronzite (Bill Wise, Northern California Mineralogical Association spring 2003 newsletter; Micro Probe 9(8), 2003).

Mineral List:

	Aegirine

	Apatite-(CaF)

	Augite

	Chrysocolla

	Cristobalite

	Cuprorivaite

	Enstatite

	Enstatite var: Bronzite

	Fluoro-edenite

	Hematite

	Ilmenite

	~~Magnesiohornblende~~

	Magnetite

	Opal var: Opal-AN

	Phlogopite

	Pseudobrookite

	Tridymite

	Volborthite

	Zircon

19 entries listed. 16 valid minerals. 1 erroneous literature entry.

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Copyright © Jolyon & Ida Ralph 1993-2008. Jobs in Oregon, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.