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Hillgrove, Sandon Co., New South Wales, Australia

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A sediment hosted syn-orogenic lode gold deposit also known as a shallow mesothermal deposit(AuSb +/-WoAg sub-type). The area near Hillgrove has over 200 old mines and workings centred on NW-NNW trending faults and shears; although some of the larger structures trend E-W. The lodes are mostly hosted in a 2 x 5km block of meta-sedimentary rocks of the Anaiwan terrane; although some granite hosted structures occur in the north of the field. The field has mainly been worked for its gold and antimony contents although most lodes contain some tungsten the mining of tungsten has been restricted to a few minor lodes in the NW of the field; generally during times of war. Most of the gold is held cryptically in pyrite and arsenopyrite with typical grades of 2-7ppm but local enrichment sometimes exceeded 200ppm. The deposits were first discovered in 1887 and mining commenced several years later, the area was almost continously mined up until 2001.



References:
- Ashley, P.M., Cook, N.D.J., Hill, R.L. (1990): Occurrence and significance of aurosibite in the Au-Sb ore from Hillgrove, New South Wales, Australia. Neues Jahrbuch für Mineralogie 12, 539-551.
- Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Invisible gold in ore and mineral concentrates from the Hillgrove gold-antimony deposits, NSW, Australia. Mineralium Deposita 35, 285-301.




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


Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Ankerite
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Antimony
    Sb
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Aurostibite
    AuSb
     
    2
    Reference: [Ashley, P.M., Cook, N.D.J., Hill, R.L., 1990 Occurrence and significance of aurosibite in the Au-Sb ore from Hillgrove, New South Wales, Australia. Neues Jahrbuch fur Mineralogie, Vol. 12, pp. 539-551]
  		•  Berthierite
    FeSb
     
    2
    		S
     
    4
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Bismuth
    Bi
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Calcite
    CaCO
     
    3
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Cervantite
    Sb
    3+
     
    		Sb
    5+
     
    		O
     
    4
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Chalcanthite
    CuSO
     
    4
    		·5H
     
    2
    		O
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Chalcostibite
    CuSbS
     
    2
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  'Chlorite Group'
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Clinozoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Dolomite
    var: Ferroan Dolomite
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Galena
    PbS
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Gold
    Au
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Gold
    var: Electrum
    (Au, Ag)
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Graphite
    C
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Jamesonite ?
    Pb
     
    4
    		FeSb
     
    6
    		S
     
    14
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Limonite
    FeO(OH)·nH
     
    2
    		O
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Marcasite
    FeS
     
    2
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Miargyrite
    AgSbS
     
    2
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Pyrargyrite
    Ag
     
    3
    		SbS
     
    3
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Pyrite
    FeS
     
    2
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Pyrite
    var: Arsenian Pyrite
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Quartz
    SiO
     
    2
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Realgar
    As
     
    4
    		S
     
    4
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Rutile
    TiO
     
    2
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Scorodite
    Fe
    3+
     
    		AsO
     
    4
    		·2H
     
    2
    		O
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Sénarmontite
    Sb
     
    2
    		O
     
    3
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  'Sericite'
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Siderite
    FeCO
     
    3
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Silver
    Ag
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Ashley, P.M., Creagh, C.J., and Ryan, C.G. (2000): Mineralium Deposita 35, 285-301.]
  		•  Stibiconite
    Sb
    3+
     
    		Sb
    5+
    2
    		O
     
    6
    		(OH)
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Stibnite
    Sb
     
    2
    		S
     
    3
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
    Site Photo
    Bakers Creek mine, Cooney, Hillgrove, Sandon Co., New South Wales, Australia
    © Keith Compton
  		•  Tetrahedrite
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.]


    44 entries listed. 38 valid minerals.

    Localities in this Region:
    Australia
     
    • New South Wales
      • Sandon Co.
        • Hillgrove
          • Hillgrove

    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 Australia 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: 9th Nov 2009 08:25:48