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French Guiana

StandardDetailedBy ChemistryMineral Photos (2)Site Photos (1)Search GoogleMineral Report for Region

(Guyane)

References:
- Fraser, Lee (1910): Origin of the Placer Gold of Guiana. Mining and Scientific Press - Nov. 26, 1910.




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

Group 1 - Elements
  		• Bismuth1.CA.05
    Bi
  		• Diamond1.CB.10a
    C
  		• Gold1.AA.05
    Au
    Group 2 - Sulphides and Sulfosalts
  		• Bismuthinite2.DB.05
    Bi
     
    2
    		S
     
    3
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Tetrahedrite2.GB.05
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Group 4 - Oxides and Hydroxides
  		• Cassiterite4.DB.05
    SnO
     
    2
  		• Chromite4.BB.05
    FeCr
     
    2
    		O
     
    4
  		• Euxenite-(Y)4.DG.05
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
  		• Gahnite4.BB.05
    ZnAl
     
    2
    		O
     
    4
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Pyrochlore4.DH.15
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
  		• Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
  		• Spinel4.BB.05
    MgAl
     
    2
    		O
     
    4
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Amblygonite8.BB.05
    LiAl[(F,OH)|PO
     
    4
    		]
  		• Strengite
    var: Aluminian Strengite    		8.CD.10
    FePO
     
    4
    		·2H
     
    2
    		O
  		• Xenotime-(Y)8.AD.35
    YPO
     
    4
    Group 9 - Silicates
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Almandine9.AD.25
    Fe
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
  		• Beryl9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
      var: Aquamarine9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
  		• Biotite9..
  		• Elbaite9.CK.05
    [Na][(Li,Al)
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Kyanite9.AF.15
    Al
     
    2
    		[O|SiO
     
    4
    		]
  		• Magnesiohornblende9.DE.10
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Muscovite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
      var: Fuchsite9.EC.15
    K(Al,Cr)
     
    3
    		Si
     
    3
    		O
     
    10
    		(OH)
     
    2
  		• Phlogopite9.EC.20
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Schorl9.CK.05
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Spessartine9.AD.25
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
  		• Staurolite9.AF.30
    (Fe
    2+
     
    		,Mg,Zn)
     
    1.5-2
    		Al
     
    9
    		[O
     
    6
    		|(OH,O)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
  		• Talc9.EC.05
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
  		• Topaz9.AF.35
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Albite-Anorthite Series'-
  		• 'Chlorite Group'-
  		• 'Columbite-Tantalite'-
  		• 'Fergusonite'-
  		• Lepidolite-
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Monazite'-
  		• 'Olivine'-
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
  		• 'Tourmaline'-
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z


    49 entries listed. 39 valid minerals.

    Localities in this Region:
    French Guiana
     
      • Apatou Commune
      • Maripasoula Commune

    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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