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Tiburon Peninsula, Marin Co., California, USA

StandardDetailedBy ChemistryMineral Photos (12)Search GoogleMineral Report for Region

Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Description: Occurs in schists.
    Reference: [Ransome, Frederick Leslie (1895), On lawsonite, a new rock-forming mineral from the Tiburon Peninsula, Marin County: Univ. Calif., Dept. Geol. Sci. Bulletin: 1: 311; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 64; Klein, C. (1969) Two-amphibole assemblages in the system actinolite-hornblende-glaucophane. American Mineralogist: 54: 212-237; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 397; American Mineralogist (1969) 54, 1139-1150.]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Description: Occurs as crystals to 1 cm in size in lawsonite schist.
    Reference: [Schaller, Waldemar Theodore (1911c), Albite from lawsonite schist, Marin County: USGS Bulletin 490: 48; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 182; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 361.]
  		•  Almandine
    Fe
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Pabst, Adolf (1931), The garnets in the glaucophane schists of California: American Mineralogist: 16: 327; Pabst, Adolf (1955), Manganese content of garnets from the Franciscan schists: American Mineralogist: 40: 921-922; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 500; American Mineralogist (1969): 54: 1139-1150.]
  		•  Aragonite
    CaCO
     
    3
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  'Chlorite Group'
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  Clinochlore
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: []
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Ransome, Frederick Leslie (1895), On lawsonite, a new rock-forming mineral from the Tiburon Peninsula, Marin County: Univ. Calif., Dept. Geol. Sci. Bulletin: 1: 310; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 176; American Mineralogist (1969): 54: 1139-1150.]
  		•  Glaucophane
    [ ][Na
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Description: Occurs as glaucophane schist.
    Reference: [Ransome, Frederick Leslie (1895), On lawsonite, a new rock-forming mineral from the Tiburon Peninsula, Marin County: University of Calif., Dept. Geol. Sci. Bulletin: 1: 311; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 69; Papike, J.J. and Clark, J.R. (1968a) Cation distribution in the crystal structure of glaucophane; II: the high pressure polymorph. Geological Society of America Abstract, 1966: 157; Papike, J.J. and Clark, J.R. (1968b) The crystal structure and cation distribution of glaucophane. American Mineralogist: 53: 1156; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 403; American Mineralogist (1969): 54: 1139-1150.]
    Site Photo
    Tiburon Peninsula, Marin Co., California, USA
    © Rob Lavinsky
  		•  Jadeite
    Na(Al,Fe
    3+
     
    		)[Si
     
    2
    		O
     
    6
    		]
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  Kyanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  Lawsonite (TL)
    CaAl
     
    2
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		] · H
     
    2
    		O
    Type Locality: Reed Station, Tiburon Peninsula, Marin Co., California, USA
    Description: Occurs in schists.
    Reference: [Ransome, Frederick Leslie (1895), On lawsonite, a new rock-forming mineral from the Tiburon Peninsula, Marin County: University of California, Department of Geological Science Bull.: 1: 301-312; American Mineralogist (1969) 54, 1139-1150; Papike, J.J. and Clark, J.R. (1968a) Cation distribution in the crystal structure of glaucophane; II: the high pressure polymorph. Geological Society of America Abstract, 1966: 157; Klein, C. (1969) Two-amphibole assemblages in the system actinolite-hornblende-glaucophane. American Mineralogist: 54: 212-237.]
    Site Photo
    Tiburon Peninsula, Marin Co., California, USA
    © Danny Jones
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: Occurs in schist.
    Reference: [Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 275; Eakle, Arthur Starr (1906), Notes on lawsonite, columbite, beryl, barite, and calcite: University of California, Department of Geological Science Bulletin: 5: 83.]
  		•  Omphacite
    (Ca,Na)(Mg,Al)[Si
     
    2
    		O
     
    6
    		]
    Reference: []
  		•  Paragonite
    NaAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  'Pumpellyite'
    Reference: [Amer.Min.(1969) 54, 1139-1150]
  		•  Rutile
    TiO
     
    2
    Reference: [No reference listed]
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: []
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [Amer.Min.(1969) 54, 1139-1150]


    18 entries listed. 16 valid minerals. 1 type locality (valid mineral).

    Localities in this Region:
    USA
     
    • California
      • Marin Co.
        • Tiburon Peninsula

    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 California, 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: 26th Nov 2009 22:10:21