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Washington, USA

StandardDetailedBy ChemistryMineral Photos (757)Site Photos (110)Search GoogleMineral Report for Region

References:
- Minerals of Washington (1975) B. Cannon, Cordilleran Press, 184 pp.
- Gems and Minerals of Washington (1985) L. R. Ream, Jackson Mountain Press, 217 pp.
- Rocks & Minerals 66 (1991) no. 4 [State Issue and Mineral Locality Index]

- http://www.washingtonminerals.com/
- http://minerals.usgs.gov/minerals/pubs/state/wa.html




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


Mineral List:
  		•  Acanthite
    Ag
     
    2
    		S
    Reference: [Cannon, B. (1975): Minerals of Washington, p.35]
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Habit: granular masses
    Colour: bright green
    Reference: [Minerals of Washington, B. Cannon, 1975]
  		•  Actinolite
    var: Byssolite
    Reference: [Crystals and Minerals Vol. 2 by Jon Gladwell]
  		•  Actinolite
    var: Nephrite
    Reference: [www.stonetrails.com]
  		•  Almandine
    Fe
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Cannon, B. (1975): Minerals of Washington, p.40]
  		•  Analcime
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Cannon, B. (1975): Minerals of Washington, p.41]
    Site Photo
    Kalama area, Cowlitz Co., Washington, USA
    © JSS
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Cannon, B. (1975): Minerals of Washington, p.78]
  		•  Andalusite
    var: Chiastolite
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Crystals and Minerals Vol. 2 by Jon Gladwell]
    Site Photo
    Rawson Quarry, Clark Co., Washington, USA
    © BT
  		•  Anthophyllite
    ☐[Mg
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Cannon, B. (1975): Minerals of Washington, p.45]
  		•  'Apophyllite'
    Description: constitutes up to 10% of the groundmass of the islands dunites
    Reference: [Cannon, B. (1975): Minerals of Washington, p.49]
  		•  Aragonite
    CaCO
     
    3
    Reference: [Cannon, B. (1975): Minerals of Washington, p.79]
    Site Photo
    Kalama area, Cowlitz Co., Washington, USA
    © JSS
  		•  Armenite
    BaCa
     
    2
    		Al
     
    6
    		Si
     
    9
    		O
     
    30
    		·2H
     
    2
    		O
    Reference: []
  		•  'Axinite'
    Reference: [Cannon, B. (1975): Minerals of Washington, p.54]
  		•  Baryte
    BaSO
     
    4
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
    Site Photo
    Green Ridge, King Co., Washington, USA
    © Karl Volkman 11-2007
  		•  Bementite
    Mn
     
    5
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    6
    Reference: [Cannon, B. (1975): Minerals of Washington, p.56]
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Biotite
    Reference: [Huntting, M. (1956): Inventory of Washington Minerals, Part I, Nonmetallic Minerals, Vol. 1]
  		•  Bismuth
    Bi
    Reference: [http://www.pnwfm.org/newsletters/PNWFM_newsletter_0409.pdf]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [The Ore Deposits of Monte Cristo, Washington, J. E. Spurr, 1901]
  		•  Burkeite
    Na
     
    6
    		CO
     
    3
    		(SO
     
    4
    		)
     
    2
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Dog Mtn, Skamania Co., Washington, USA
    © BT
  		•  Calcite
    var: Glendonite
    Reference: [various added photos]
    Site Photo
    Grays Harbor Co., Washington, USA
     
  		•  Cancrinite
    Na
     
    6
    		Ca
     
    2
    		[(CO
     
    3
    		)
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		] · 2H
     
    2
    		O
    Habit: boulders
    Description: in conglomerate
    Reference: [Cannon, B. (1975): Minerals of Washington, p.66]
  		•  Celadonite
    K(Mg,Fe
    2+
     
    		)(Fe
    3+
     
    		,Al)[(OH)
     
    2
    		|Si
     
    4
    		O
     
    10
    		]
    Description: quantities to 2% in volcanics
    Reference: [Cannon, B. (1975): Minerals of Washington, p.67]
  		•  'Chabazite'
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
  		•  'Chalcedony'
    Reference: [self collected]
    Site Photo
    Ellensburg, Kittitas Co., Washington, USA
    © Don Volkman
  		•  'Chalcedony
    var: Agate'
    SiO
     
    2
    Reference: []
  		•  'Chalcedony
    var: Myrickite'
    Reference: [Dake, 1956. NW Gem Trails, 2nd ed.]
  		•  'Chalcedony
    var: Petrified Wood'
    Reference: []
    Site Photo
    Washington, USA
    © Danny Jones
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [The Ore Deposits of Monte Cristo, Washington, J. E. Spurr, 1901]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [`Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990]
  		•  'Chlorite Group'
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Reference: [Cannon, B. (1975): Minerals of Washington, p.73]
  		•  Cinnabar
    HgS
    Reference: [USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"]
  		•  'Clay'
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
  		•  Clinochlore
    var: Chromian Clinochlore
    Mg
     
    5
    		(Al,Cr)
     
    2
    		Si
     
    3
    		O
     
    10
    		(OH)
     
    8
    Reference: [Cannon, B. (1975): Minerals of Washington, p.73]
  		•  Clinoptilolite-Ca
    (Ca,Na,K)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © Dick Dionne
  		•  Clinozoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Habit: sheaf like crysta;s to 2.5" long
    Colour: dark green
    Reference: [Cannon, B. (1975): Minerals of Washington, p.76]
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Habit: knots of anhedral cordierite
    Description: in schist
    Reference: [Cannon, B. (1975): Minerals of Washington, p.77]
  		•  Cristobalite
    SiO
     
    2
    Habit: cuboctohedral
    Reference: [Cannon, B. (1975): Minerals of Washington, p.79]
  		•  Datolite
    CaB[OH|SiO
     
    4
    		]
    Habit: radiating, fibrous, botryodial
    Colour: white to light green
    Reference: [Cannon, B. (1975): Minerals of Washington, p.81]
    Site Photo
    Lewis River, Skamania Co., Washington, USA
     
  		•  'Davidite'
    Reference: [Cannon, B. (1975): Minerals of Washington, p.81]
  		•  Diamond
    C
    Description: found in placers on the coastal beaches
    Reference: [Cannon, B. (1975): Minerals of Washington, p.81]
  		•  'Diatomaceous Earth'
    Reference: []
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Habit: euhedral crystals to .75"
    Colour: dark green
    Reference: [Cannon, B. (1975): Minerals of Washington, p.82]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Dufrénite
    Ca
     
    0.5
    		Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
    Description: as a cementing agent in coastal placers
    Reference: [Cannon, B. (1975): Minerals of Washington, p.83]
  		•  Enstatite
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
    Habit: blades up to 50cm
    Description: in lamprophyre dikes
    Reference: [Cannon, B. (1975): Minerals of Washington, p.85]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Cannon, B. (1975): Minerals of Washington, p.86]
    Site Photo
    Denny Mountain, King Co., Washington, USA
    © JSS
  		•  Epistilbite
    CaAl
     
    2
    		Si
     
    6
    		O
     
    16
    		·5H
     
    2
    		O
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
    Site Photo
    Yacolt, Clark Co., Washington, USA
    © Dick Dionne
  		•  Epsomite
    MgSO
     
    4
    		·7H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  'Erionite'
    Reference: [Micro Probe Volume VII Number 9 Spring 1994]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © Saul Krotki 2004
  		•  Erionite-K
    (K
     
    2
    		,Ca,Na
     
    2
    		)
     
    2
    		[Al
     
    4
    		Si
     
    14
    		O
     
    36
    		] · 15H
     
    2
    		O
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © Bart Cannon
  		•  Fersmanite ?
    (Ca,Na)
     
    4
    		(Ti,Nb)
     
    2
    		Si
     
    2
    		O
     
    11
    		(F,OH)
     
    2
    Reference: [http://tin.er.usgs.gov/mrds/show.php?labno=10278584]
  		•  Fluorite
    CaF
     
    2
    Reference: [ Minerals of Washington, Bart Cannon 1975]
    Site Photo
    Curlew District, Ferry Co., Washington, USA
    © Karl Volkman 9/07/09
  		•  Forsterite
    Mg
     
    2
    		[SiO
     
    4
    		]
    Reference: [Minerals of Washington, B. Cannon, 1975]
  		•  Galena
    PbS
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956 ]
  		•  Gaylussite
    Na
     
    2
    		Ca(CO
     
    3
    		)
     
    2
    		·5H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  'Gmelinite'
    Reference: [Tschernich, R. (1992): Zeolites of the World, p. 120]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: []
  		•  Gold
    Au
    Reference: [ Minerals of Washington, Bart Cannon 1975]
  		•  Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
  		•  Graphite
    C
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Grossular
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Cannon, B. (1975): Minerals of Washington, p.76]
    Site Photo
    Denny Mountain, King Co., Washington, USA
    © JSS
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Halite
    NaCl
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Harmotome
    (Ba
     
    0.5
    		,Ca
     
    0.5
    		,K,Na)
     
    5
    		[Al
     
    5
    		Si
     
    11
    		O
     
    32
    		] ·12H
     
    2
    		O
    Reference: [Tschernich, R. (1992): Zeolites of the World, p. 120]
  		•  Hausmannite
    MnMn
     
    2
    		O
     
    4
    Reference: [Ref:Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Hedenbergite
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Minerals of Washington, B. Cannon, 1975]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Habit: specular
    Reference: [Cannon, B. (1975): Minerals of Washington, p.76]
    Site Photo
    Denny Mountain, King Co., Washington, USA
    © Karl Volkman 11/07
  		•  Hercynite
    FeAl
     
    2
    		O
     
    4
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  'Heulandite'
    Reference: [ Minerals of Washington, Bart Cannon 1975]
    Site Photo
    Stevenson, Skamania Co., Washington, USA
    © Karl Volkman03/05
  		•  Hörnesite
    Mg
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Reference: [www.cannonmicroprobe.com/Mineral_Specimens.htm ]
  		•  Hydromagnesite
    Mg
     
    5
    		[(CO
     
    3
    		)
     
    4
    		(OH)
     
    2
    		] · 4H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"]
  		•  Jadeite
    Na(Al,Fe
    3+
     
    		)[Si
     
    2
    		O
     
    6
    		]
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Krennerite
    (Au,Ag)Te
     
    2
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Kyanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Description: pseudomorphs after chiastolite crystals
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Laumontite
    CaAl
     
    2
    		Si
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  'Lévyne'
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
    Site Photo
    Grays Harbor Co., Washington, USA
    © Pedro González
  		•  Magnesite
    MgCO
     
    3
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Cannon, B. (1975): Minerals of Washington, p.79]
  		•  Meionite
    Ca
     
    4
    		[CO
     
    3
    		|(Al
     
    2
    		Si
     
    2
    		O
     
    8
    		)
     
    3
    		]
    Reference: []
  		•  Mesolite
    Na
     
    2
    		Ca
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    3
    		 · 8H
     
    2
    		O
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
    Site Photo
    Thurston Co., Washington, USA
     
  		•  Mirabilite
    Na
     
    2
    		SO
     
    4
    		·10H
     
    2
    		O
    Description: Occurs in small alkaline lakes.
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 441; www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Molybdenite
    MoS
     
    2
    Reference: [```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Minerals of Washington, B. Cannon, 1975; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990]
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Tschernich, R. (1992): Zeolites of the World, p. 120]
  		•  Mordenite
    (Na
     
    2
    		,Ca,K
     
    2
    		)Al
     
    2
    		Si
     
    10
    		O
     
    24
    		·7H
     
    2
    		O
    Reference: []
    Site Photo
    Stevenson, Skamania Co., Washington, USA
    © Karl Volkman
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
    Site Photo
    Mason Co., Washington, USA
    © John Cornish
  		•  Natron
    Na
     
    2
    		CO
     
    3
    		·10H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Neotocite
    (Mn,Fe,Mg)SiO
     
    3
    		·H
     
    2
    		O
    Reference: [Ref:Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: [Cannon, B. (1975): Minerals of Washington, p.66]
  		•  Nontronite
    Na
     
    0.3
    		Fe
     
    2
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Offretite
    KCaMgAl
     
    5
    		Si
     
    13
    		O
     
    36
    		·16H
     
    2
    		O or near
    Reference: [ Minerals of Washington, Bart Cannon 1975]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © DM06
  		•  Okenite
    CaSi
     
    2
    		O
     
    5
    		·2H
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Opal
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Diatomite Mines, Grant Co., Washington, USA
    © Don Volkman 12/07
  		•  Opal
    var: Hydrophane
    Reference: [Dake, 1956. NW Gem Trails, 2nd ed.]
  		•  Opal
    var: Opal-AN
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: [Dake, 1956. NW Gem Trails, 2nd ed.]
    Site Photo
    Denny Mountain, King Co., Washington, USA
    © Karl Volkman 02/06
  		•  Opal
    var: Wood Opal
    Reference: []
  		•  Orpiment
    As
     
    2
    		S
     
    3
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956 ]
  		•  Orthoclase
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Paulingite-K (TL)
    (K
     
    2
    		,Ca,Na
     
    2
    		,Ba)
     
    5
    		[Al
     
    10
    		Si
     
    35
    		O
     
    90
    		] · 45H
     
    2
    		O
    Type Locality: Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © Saul Krotki 2002
  		•  'Phillipsite'
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © Pedro González
  		•  Phillipsite-K
    (K,Na,Ca
     
    0.5
    		,Ba
     
    0.5
    		)
     
    4-7
    		[Al
     
    4-7
    		Si
     
    12-9
    		O
     
    32
    		]
    .
     
    		 12H
     
    2
    		O
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © DM06
  		•  Prehnite
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
    Reference: [Cannon, B. (1975): Minerals of Washington, p.85]
  		•  Pyrite
    FeS
     
    2
    Reference: [Tschernich (1991): Zeolites of Washington State. Rock & Minerals, 66(4)]
    Site Photo
    Rock Island Dam, Douglas and Chelan Co. Border, Washington, USA
    © DM06
  		•  Pyrope
    Mg
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [Ref: Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Quartz
    SiO
     
    2
    Habit: scepters
    Colour: amethystine
    Reference: [Cannon, B. (1975): Minerals of Washington, p.64,76]
    Site Photo
    Denny Mountain, King Co., Washington, USA
     
  		•  Quartz
    var: Amethyst
    SiO
     
    2
    Reference: [Donald Volkman personal Collection]
    Site Photo
    Dog Mtn, Skamania Co., Washington, USA
    © Alan Goldstein
  		•  Quartz
    var: Jasper
    Reference: []
  		•  Quartz
    var: Rock Crystal
    Reference: [Minerals of Washington, Bart Cannon, 1975]
    Site Photo
    Cedar Ponds, Snohomish Co., Washington, USA
    © Karl Volkman
  		•  Quartz
    var: Rutilated Quartz
    Reference: [Rocks & Min. 71(4):250]
  		•  Quartz
    var: Sceptre Quartz
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: [www.stonetrails.com]
  		•  Realgar
    As
     
    4
    		S
     
    4
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956 ]
  		•  Rutile
    TiO
     
    2
    Reference: [Rocks & Min. 71(4):250]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Minerals of Washington, B. Cannon, 1975; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990]
  		•  Scolecite
    Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 3H
     
    2
    		O
    Reference: [Cannon, B. (1975): Minerals of Washington, p.41]
    Site Photo
    Bairds Quarry, Cowlitz Co., Washington, USA
    © Alan Goldstein
  		•  Scorodite
    Fe
    3+
     
    		AsO
     
    4
    		·2H
     
    2
    		O
    Reference: [The Ore Deposits of Monte Cristo, Washington, J. E. Spurr, 1901; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 766.]
  		•  Sepiolite
    Mg
     
    4
    		Si
     
    6
    		O
     
    15
    		(OH)
     
    2
    		·6H
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  'Sericite'
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  'Serpentine Group'
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
    Reference: [www.cannonmicroprobe.com/Mineral_Specimens.htm ]
  		•  Siderite
    var: Sphärosiderite
    Reference: [Cannon, B. (1975): Minerals of Washington, p.79]
    Site Photo
    Spokane area, Spokane Co., Washington, USA
    © 2000 John H. Betts
  		•  Silver
    Ag
    Reference: [USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"]
  		•  'Smectite Group'
    A
     
    0.3
    		D
     
    2-3
    		[T
     
    4
    		O
     
    10
    		]Z
     
    2
    		·nH
     
    2
    		O
    Reference: [http://cms.lanl.gov/chem.htm.]
  		•  Smithsonite
    ZnCO
     
    3
    Reference: []
    Site Photo
    Stevens Co., Washington, USA
    © Karl Volkman 2002
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956 ]
  		•  Staurolite
    (Fe
    2+
     
    		,Mg,Zn)
     
    1.5-2
    		Al
     
    9
    		[O
     
    6
    		|(OH,O)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Stephanite
    Ag
     
    5
    		SbS
     
    4
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956 ]
  		•  Stibnite
    Sb
     
    2
    		S
     
    3
    Reference: [Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  'Stilbite'
    Reference: [Cannon, B. (1975): Minerals of Washington, p.80]
    Site Photo
    Signal Peak, Cowlitz Co., Washington, USA
    © John Sobolewski
  		•  Stilpnomelane
    (K,Ca,Na)(Fe
    2+
     
    		,Mg,Al,Fe
    3+
     
    		)
     
    8
    		(Si,Al)
     
    12
    		(O,OH)
     
    36
    		 · nH
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Strontianite
    SrCO
     
    3
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 199.]
    Site Photo
    Camano Island, Island Co., Washington, USA
    © Karl Volkman
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Tellurobismuthite
    Bi
     
    2
    		Te
     
    3
    Reference: [http://www.pnwfm.org/newsletters/PNWFM_newsletter_0409.pdf]
  		•  Tenorite
    CuO
    Reference: [The Ore Deposits of Monte Cristo, Washington, J. E. Spurr, 1901]
  		•  Thenardite
    Na
     
    2
    		SO
     
    4
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Thermonatrite
    Na
     
    2
    		CO
     
    3
    		·H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    Reference: [Micro Probe Vol.7 No.9 Spring '94]
    Site Photo
    Porter, Grays Harbor Co., Washington, USA
    © Dick Dionne
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [http://www.pnwfm.org/newsletters/PNWFM_newsletter_0409.pdf]
    Site Photo
    Sunday Creek, King Co., Washington, USA
    © DM 07
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Inventory of Washington Minerals, Part I, Nonmetalic Minerals, Vol. 1; Marshall T. Huntting, 1956]
  		•  Trona
    Na
     
    3
    		H(CO
     
    3
    		)
     
    2
    		·2H
     
    2
    		O
    Reference: [www.dnr.wa.gov/geology/okanogan.htm.]
  		•  Uvarovite
    Ca
     
    3
    		Cr
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Cannon, B. (1975): Minerals of Washington, p.73]
  		•  Vesuvianite
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Wairakite
    Ca[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Minerals of Washington, Bart Cannon, 1975]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [Minerals of Washington, B. Cannon, 1975]
  		•  Xonotlite
    Ca
     
    6
    		Si
     
    6
    		O
     
    17
    		(OH)
     
    2
    Reference: [Cannon, B. (1975): Minerals of Washington, p.85]
  		•  Zoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Minerals of Washington, Bart Cannon, 1975]


    152 entries listed. 115 valid minerals. 1 type locality (valid mineral).

    Localities in this Region:


    378 localities of a total of 2396 localities shown. Additional sublocalities are indicated by the green plus sign(+).
    USA
     
    • Washington
      • Douglas and Chelan Co. Border
      • Skagit-Whatcom Co. Border

    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 Washington, 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: 29th Nov 2009 13:30:38