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Gunung Pongkor Mine, Bogor District, Jawa Barat Province (West Java Province), Jawa Island (Java Island), Indonesia

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Supergene-enriched epithermal low-sulphidation Au-Ag-(Mn) deposit.



References:
- Economic Geology 97(3), 561-571: Supergene Alteration of Primary Ore Assemblages from Low-Sulfidation Au-Ag Epithermal Deposits at Pongkor, Indonesia, and Nazareño, Perú (2002).
- Milési, J.P., Marcoux, E., Sitorus, T., Simandjuntak, M., Leroy, J., and Bailly, L. (1999): Pongkor (west Java, Indonesia): a Pliocene supergene-enriched epithermal Au-Ag-(Mn) deposit. Mineralium Deposita 34, 131-149.

- http://www.antam.com/News/Publications/IMC/Minerals/IMC/sec3gld.doc




Group 1 - Elements
  		• Gold
    var: Electrum    		1.AA.05
    (Au, Ag)
  		• Silver1.AA.05
    Ag
    Group 2 - Sulphides and Sulfosalts
  		• Acanthite2.BA.35
    Ag
     
    2
    		S
  		• Aguilarite2.BA.55
    Ag
     
    4
    		SeS
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Galena2.CD.10
    PbS
  		• Hessite2.BA.60
    Ag
     
    2
    		Te
  		• Pearceite2.GB.15
    [(Ag,Cu)
     
    6
    		(As,Sb)
     
    2
    		S
     
    7
    		][Ag
     
    9
    		CuS
     
    4
    		]
  		• Polybasite2.GB.15
    [(Ag,Cu)
     
    6
    		(Sb,As)
     
    2
    		S
     
    7
    		][Ag
     
    9
    		CuS
     
    4
    		]
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
    Group 4 - Oxides and Hydroxides
  		• Birnessite4.FL.45
    (Na,Ca)
     
    0.5
    		(Mn
    4+
     
    		,Mn
    3+
     
    		)
     
    2
    		O
     
    4
    		 · 1.5H
     
    2
    		O
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Pyrolusite4.DB.05
    MnO
     
    2
  		• Quartz4.DA.05
    SiO
     
    2
  		• Ranciéite4.FL.40
    (Ca,Mn)Mn
     
    4
    		O
     
    9
    		·3H
     
    2
    		O
  		• Todorokite4.DK.10
    (Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)
     
    6
    		O
     
    12
    		·3H
     
    2
    		O
    Group 5 - Nitrates and Carbonates
  		• Ankerite5.AB.10
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
  		• Calcite5.AB.05
    CaCO
     
    3
      var: Manganoan Calcite5.AB.05
    (Ca,Mn)CO
     
    3
  		• Kutnohorite5.AB.10
    Ca(Mn,Mg,Fe)(CO
     
    3
    		)
     
    2
  		• Rhodochrosite5.AB.05
    MnCO
     
    3
    Group 9 - Silicates
  		• 'Adularia'9.FA.30
    KAlSi
     
    3
    		O
     
    8
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Clinochlore9.EC.55
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Halloysite-7Å9.ED.10
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Montmorillonite9.EC.40
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Rhodonite9.DK.05
    MnSiO
     
    3
    Unclassified Minerals
  		• Illite-
    K
     
    0.65
    		A
     
    2.0
    		 [][Al
     
    0.65
    		Si,
     
    3.35
    		O
     
    10
    		](OH)
     
    2
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Sericite'-
  		• 'Smectite Group'-
    A
     
    0.3
    		D
     
    2-3
    		[T
     
    4
    		O
     
    10
    		]Z
     
    2
    		·nH
     
    2
    		O
  		• 'Tourmaline'-
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z


    36 entries listed. 31 valid minerals.

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