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Harper Mountain, Spray, Wheeler Co., Oregon, USA

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Site is along John Day River 4.7 miles west of Spray, at the foot of Harper Mountain. Minerals occur in the lower flow of the Picture Gorge member of the Miocene Columbia River Basalt Group.





Mineral List:
  		•  Analcime
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Apophyllite-(KF)
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Calcite
    CaCO
     
    3
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  'Chabazite'
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Cowlesite
    CaAl
     
    2
    		Si
     
    3
    		O
     
    10
    		·6H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Garronite
    Na
     
    2
    		Ca
     
    5
    		Al
     
    12
    		Si
     
    20
    		O
     
    64
    		·27H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Gyrolite
    Ca
     
    4
    		(Si
     
    6
    		O
     
    15
    		)(OH)
     
    2
    		·3H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  'Lévyne'
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Mesolite
    Na
     
    2
    		Ca
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    3
    		 · 8H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  'Phillipsite'
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Tacharanite
    Ca
     
    12
    		Al
     
    2
    		Si
     
    18
    		O
     
    51
    		·18H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]
  		•  Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    Reference: [Micro Probe VolumeVII Number 3 Spring 1996]


    12 entries listed. 9 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!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. Current server date and time: 30th Oct 2009 08:17:54