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Forster Prospect, Weld river, Huon district, Tasmania, Australia

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A small prospect first found in about 1877, with some shafts and a short adit. It was mostly prospected for gold, but zinc, nickel and osmiridium mineralisation is also recorded, associated with altered serpentineite conglomerates, skarns, and silicified dolostones.
Ref:

R.S. Bottrill, J. Taheri, & C.R. Calver, 1999, THE NATURE AND ORIGIN OF GOLD MINERALISATION AT FORSTERS PROSPECT, IN THE GLOVERS BLUFF/WELD RIVER AREA. Mineral Resources Tasmania., Record 1999/06



References:
R.S. Bottrill, J. Taheri, & C.R. Calver, 1999, THE NATURE AND ORIGIN OF GOLD MINERALISATION AT FORSTERS PROSPECT, IN THE GLOVERS BLUFF/WELD RIVER AREA. Mineral Resources Tasmania., Record 1999/06




Group 1 - Elements
  		• Gold1.AA.05
    Au
  		• Graphite1.CB.05a
    C
  		• Iridium1.AF.10
    (Ir,Os,Ru)
      var: Osmiridium1.AF.10
    (Ir,Os,Ru)
  		• Osmium1.AF.05
    (Os,Ir,Ru)
    Group 2 - Sulphides and Sulfosalts
  		• Cobaltite2.EB.25
    CoAsS
  		• Cubanite2.CB.55a
    CuFe
     
    2
    		S
     
    3
  		• Galena2.CD.10
    PbS
  		• Gersdorffite2.EB.25
    NiAsS
  		• Löllingite2.EB.15a
    FeAs
     
    2
  		• Marcasite2.EB.10a
    FeS
     
    2
  		• Millerite2.CC.20
    NiS
  		• Nickeline2.CC.05
    NiAs
  		• Proustite2.GA.05
    Ag
     
    3
    		AsS
     
    3
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
  		• Rammelsbergite2.EB.15a
    NiAs
     
    2
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
  		• Tetrahedrite2.GB.05
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
  		• Ullmannite2.EB.25
    NiSbS
    Group 4 - Oxides and Hydroxides
  		• Anatase4.DD.05
    TiO
     
    2
  		• Brucite4.FE.05
    Mg(OH)
     
    2
  		• Chromite4.BB.05
    FeCr
     
    2
    		O
     
    4
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Magnesiochromite4.BB.05
    MgCr
     
    2
    		O
     
    4
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
  		• Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Aragonite5.AB.15
    CaCO
     
    3
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Cerussite5.AB.15
    PbCO
     
    3
  		• Dolomite5.AB.10
    CaMg(CO
     
    3
    		)
     
    2
  		• Hydromagnesite5.DA.05
    Mg
     
    5
    		[(CO
     
    3
    		)
     
    4
    		(OH)
     
    2
    		] · 4H
     
    2
    		O
  		• Siderite5.AB.05
    FeCO
     
    3
  		• Sjögrenite5.DA.45
    Mg
     
    6
    		Fe
    3+
    2
    		[(OH)
     
    16
    		|CO
     
    3
    		] · 4H
     
    2
    		O
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
  		• Symplesite8.CE.45
    Fe
    2+
    3
    		(AsO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Group 9 - Silicates
  		• Actinolite9.DE.10
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
  		• Albite
    var: Andesine    		9.FA.35
    (Na,Ca)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
  		• Andradite9.AD.25
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
  		• Apophyllite-(KF)9.EA.15
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
  		• Augite9.DA.15
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
  		• Biotite9..
  		• Chrysotile9.ED.15
    Mg
     
    3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Clinochlore9.EC.55
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Diopside9.DA.15
    CaMg[Si
     
    2
    		O
     
    6
    		]
  		• Enstatite9.DA.05
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Gedrite9.DD.05
    ☐[Mg
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
  		• Grossular9.AD.25
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
  		• Halloysite9.ED.10
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Hedenbergite9.DA.15
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Laumontite9.GB.10
    CaAl
     
    2
    		Si
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
  		• Lizardite9.ED.15
    Mg
     
    3
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    5
    		]
  		• Magnesiohornblende9.DE.10
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
  		• Montmorillonite9.EC.40
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Muscovite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Orthoclase9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Pectolite9.DG.05
    NaCa
     
    2
    		[HSi
     
    3
    		O
     
    9
    		]
  		• Pigeonite9.DA.10
    (Mg,Fe
    2+
     
    		,Ca)(Mg,Fe
    2+
     
    		)[Si
     
    2
    		O
     
    6
    		]
  		• Prehnite9.DP.20
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
  		• Scawtite9.CK.15
    Ca
     
    7
    		Si
     
    6
    		(CO
     
    3
    		)O
     
    18
    		·2H
     
    2
    		O
  		• Talc9.EC.05
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
  		• Tremolite9.DE.10
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Vesuvianite9.BG.35
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
  		• Wollastonite9.DG.05
    Ca[SiO
     
    3
    		]
  		• Xonotlite9.DG.35
    Ca
     
    6
    		Si
     
    6
    		O
     
    17
    		(OH)
     
    2
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Heulandite'-
  		• 'Hydrogrossular'-
  		• Illite-
    K
     
    0.65
    		A
     
    2.0
    		 [][Al
     
    0.65
    		Si,
     
    3.35
    		O
     
    10
    		](OH)
     
    2


    75 entries listed. 71 valid minerals.

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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: 8th Nov 2009 22:59:56