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Platt Prospect, Dundas mineral field, Zeehan District, West Coast municipality, Tasmania, Australiai
Regional Level Types
Platt ProspectProspect
Dundas mineral field- not defined -
Zeehan DistrictDistrict
West Coast municipalityMunicipality
TasmaniaState
AustraliaCountry

This page kindly sponsored by Shane Stanfield
Key
Latitude & Longitude (WGS84):
41° 52' 53'' South , 145° 26' 20'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Zeehan845 (2012)8.5km
Rosebery1,035 (2012)14.0km
Tullah196 (2014)22.5km
Queenstown2,352 (2012)24.2km
Gormanston169 (2014)25.2km


A small underground silver-lead mine, presently worked for specimen minerals, especially crocoite and pyromorphite.

This property is situated at the eastern boundary of the West Comet and south-west of the Comet mine, on the north slopes of Kosminsky Hill, about 3.5 km from Dundas. It was probably originally on the Kosminsky lease, but in 1925 it was held under prospector’s license by Charles Platt. It is probably the deposit described as the "crocoite lode" by Montgomery (1890). The lode was reopened by Mike Phelan and Joe Pringle in the 1970s, and was taken on by Bruce Stark from the 1990s to ~2018.
There were two lodes striking NNE, 70 m apart and up to 28 m wide in a fault zone near a contact between serpentinite and Cambrian shales. The sulphide ores consisted mostly of galena, sphalerite and jamesonite, occurring in veins up to 1.3 m wide.
Weathered parts of the lodes contained crocoite, pyromorphite, mimetite and cerussite in ferro-manganese gossan and quartz. One lode contains a fair proportion of crocoite and some bindheimite, rich in silver. Well crystallised pyrolusite and chalcophanite are also present in the gossan. In recent years, small-scale specimen mining has produced attractive crocoite and pyromorphite associations, and good crystalline pyrolusite rarely associated with crocoite, plus minor cerussite. Specimens typically exhibit small sharply terminated orange-red crocoite crystals on dark green pyromorphite, with a soft yellow-brown gossan or vein quartz matrix.

Regions containing this locality

Australian Plate (Australia Plate)Tectonic Plate
Delamerian Orogen, AustraliaOrogen
Thylacine Province, Tasmania, AustraliaGeologic Province

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

'Bindheimite'
Formula: Pb2Sb2O6O
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Cerussite
Formula: PbCO3
Reference: Australian Journal of Mineralogy (2006) 12: 59-90; Australian Journal of Mineralogy (2006) 12: 59-90
Chalcophanite
Formula: (Zn,Fe,Mn)Mn3O7 · 3H2O
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Crocoite
Formula: PbCrO4
Reference: R. Bottrill, unpub. data; Australian Journal of Mineralogy (2006) 12: 59-90
Galena
Formula: PbS
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Goethite
Formula: α-Fe3+O(OH)
Jamesonite
Formula: Pb4FeSb6S14
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Mimetite
Formula: Pb5(AsO4)3Cl
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Pyrolusite
Formula: Mn4+O2
Reference: R. Bottrill, unpub. data; Australian Journal of Mineralogy (2006) 12: 59-90
Pyromorphite
Formula: Pb5(PO4)3Cl
Reference: R. Bottrill, unpub. data; Australian Journal of Mineralogy (2006) 12: 59-90
Quartz
Formula: SiO2
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
Sphalerite
Formula: ZnS
Reference: Australian Journal of Mineralogy (2006) 12: 59-90
'Wad'
Reference: Australian Journal of Mineralogy (2006) 12: 59-90

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Jamesonite2.HB.15Pb4FeSb6S14
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Bindheimite'4.DH.20Pb2Sb2O6O
Chalcophanite4.FL.20(Zn,Fe,Mn)Mn3O7 · 3H2O
Goethite4.00.α-Fe3+O(OH)
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Cerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Crocoite7.FA.20PbCrO4
Group 8 - Phosphates, Arsenates and Vanadates
Mimetite8.BN.05Pb5(AsO4)3Cl
Pyromorphite8.BN.05Pb5(PO4)3Cl
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Wad'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
Group 3 - SULFOSALTS
2 < ø < 2.49
Jamesonite3.6.7.1Pb4FeSb6S14
Group 4 - SIMPLE OXIDES
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB3X7
Chalcophanite7.8.2.1(Zn,Fe,Mn)Mn3O7 · 3H2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Group 35 - ANHYDROUS CHROMATES
AXO4
Crocoite35.3.1.1PbCrO4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Mimetite41.8.4.2Pb5(AsO4)3Cl
Pyromorphite41.8.4.1Pb5(PO4)3Cl
Group 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Bindheimite'44.1.1.2Pb2Sb2O6O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)
'Wad'-

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H Limonite(Fe,O,OH,H2O)
H Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2O
CCarbon
C CerussitePbCO3
OOxygen
O CrocoitePbCrO4
O PyromorphitePb5(PO4)3Cl
O PyrolusiteMn4+O2
O Goethiteα-Fe3+O(OH)
O Limonite(Fe,O,OH,H2O)
O QuartzSiO2
O MimetitePb5(AsO4)3Cl
O CerussitePbCO3
O BindheimitePb2Sb2O6O
O Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2O
SiSilicon
Si QuartzSiO2
PPhosphorus
P PyromorphitePb5(PO4)3Cl
SSulfur
S GalenaPbS
S SphaleriteZnS
S JamesonitePb4FeSb6S14
ClChlorine
Cl PyromorphitePb5(PO4)3Cl
Cl MimetitePb5(AsO4)3Cl
CrChromium
Cr CrocoitePbCrO4
MnManganese
Mn PyrolusiteMn4+O2
Mn Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2O
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe JamesonitePb4FeSb6S14
Fe Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2O
ZnZinc
Zn SphaleriteZnS
Zn Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2O
AsArsenic
As MimetitePb5(AsO4)3Cl
SbAntimony
Sb JamesonitePb4FeSb6S14
Sb BindheimitePb2Sb2O6O
PbLead
Pb CrocoitePbCrO4
Pb PyromorphitePb5(PO4)3Cl
Pb GalenaPbS
Pb JamesonitePb4FeSb6S14
Pb MimetitePb5(AsO4)3Cl
Pb CerussitePbCO3
Pb BindheimitePb2Sb2O6O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Bottrill, R.S., Williams, P., Dohnt, S., Sorrell, S. and Kemp, N.R. (2006). Crocoite and associated minerals from Dundas and other locations in Tasmania. Australian Journal of Mineralogy. 12, 59-90.


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