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Tenth Legion mine, Mt Heemskirk mineral field, Zeehan district, West Coast municipality, Tasmania, Australia

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Latitude & Longitude (WGS84): 41° 49' 33'' South , 145° 8' 0'' East
Latitude & Longitude (decimal): -41.82607,145.13337
GeoHash:G#: r0x4n9fcs
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


A complex magnesian skarn in Late Proterozoic rocks near a granite contact. There are some old abandoned workings in the magnetite lodes.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

Brucite
Formula: Mg(OH)2
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Calcite
Formula: CaCO3
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Dolomite
Formula: CaMg(CO3)2
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Forsterite
Formula: Mg2SiO4
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Ludwigite
Formula: Mg2Fe3+(BO3)O2
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
'Pyroaurite-2H'
Formula: Mg6Fe3+2(OH)16(CO3) · 4H2O
Description: Described by Bottrill & Baker (2008) as a sjögrenite-like mineral, XRD identified, but need more investigation.
Reference: Bottrill R.S. & Baker, W.E. (2008) A Catalogue of Minerals of Tasmania. Tasmanian Geological Survey Bulletin 73, 254p. (p. 163)
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Szaibélyite
Formula: MgBO2(OH)
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Vonsenite
Formula: Fe2+2Fe3+(BO3)O2
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Wollastonite
Formula: CaSiO3
Reference: Bottrill & Baker (in prep) Catalogue of minerals of Tasmania

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Brucite'4.FE.05Mg(OH)2
'Magnetite'4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Pyroaurite-2H'5.DA.45Mg6Fe3+2(OH)16(CO3) · 4H2O
Group 6 - Borates
'Ludwigite'6.AB.30Mg2Fe3+(BO3)O2
'Szaibélyite'6.BA.15MgBO2(OH)
'Vonsenite'6.AB.30Fe2+2Fe3+(BO3)O2
Group 9 - Silicates
'Forsterite'9.AC.05Mg2SiO4
'Vesuvianite'9.BG.35(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
'Wollastonite'9.DG.05CaSiO3
Unclassified Minerals, Rocks, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
X(OH)2
Brucite6.2.1.1Mg(OH)2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
'Pyroaurite-2H'16b.6.1.3Mg6Fe3+2(OH)16(CO3) · 4H2O
Group 24 - ANHYDROUS BORATES
A2BO2[XO3]
Ludwigite24.2.1.1Mg2Fe3+(BO3)O2
Vonsenite24.2.1.2Fe2+2Fe3+(BO3)O2
Group 25 - ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
Diborates
Szaibélyite25.2.1.2MgBO2(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Vesuvianite58.2.4.1(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Unclassified Minerals, Rocks, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H BruciteMg(OH)2
H Pyroaurite-2HMg6Fe23+(OH)16(CO3) · 4H2O
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H SzaibélyiteMgBO2(OH)
H Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
BBoron
B LudwigiteMg2Fe3+(BO3)O2
B SzaibélyiteMgBO2(OH)
B Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
B VonseniteFe22+Fe3+(BO3)O2
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C Pyroaurite-2HMg6Fe23+(OH)16(CO3) · 4H2O
OOxygen
O BruciteMg(OH)2
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O ForsteriteMg2SiO4
O LudwigiteMg2Fe3+(BO3)O2
O MagnetiteFe2+Fe23+O4
O Pyroaurite-2HMg6Fe23+(OH)16(CO3) · 4H2O
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O SzaibélyiteMgBO2(OH)
O Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
O VonseniteFe22+Fe3+(BO3)O2
O WollastoniteCaSiO3
FFluorine
F Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
NaSodium
Na Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
MgMagnesium
Mg BruciteMg(OH)2
Mg DolomiteCaMg(CO3)2
Mg ForsteriteMg2SiO4
Mg LudwigiteMg2Fe3+(BO3)O2
Mg Pyroaurite-2HMg6Fe23+(OH)16(CO3) · 4H2O
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg SzaibélyiteMgBO2(OH)
Mg Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
SiSilicon
Si ForsteriteMg2SiO4
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Si WollastoniteCaSiO3
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Ca WollastoniteCaSiO3
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe LudwigiteMg2Fe3+(BO3)O2
Fe MagnetiteFe2+Fe23+O4
Fe Pyroaurite-2HMg6Fe23+(OH)16(CO3) · 4H2O
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Fe VonseniteFe22+Fe3+(BO3)O2
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoproterozoic
541 - 1000 Ma



ID: 3191628
Neoproterozoic sedimentary rocks

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Mudstone,sandstone,siltstone

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neoproterozoic
541 - 1000 Ma



ID: 701226
Oonah Formation and correlates

Age: Neoproterozoic (541 - 1000 Ma)

Stratigraphic Name: Oonah Formation

Description: Quartzwacke turbidite, dolomitic in same areas; some basalt; includes Burnie Formation

Comments: sedimentary siliciclastic; synthesis of multiple published descriptions

Lithology: Sedimentary siliciclastic

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
MRT Document GSMR06: The iron ore deposits of Tasmania
MRT Document OS_203: Report on the iron and zinc lead ore deposits of the Comstock district
Company Report - Onshore 64_0375: Preliminary Report - Comstock Magnetite Deposits, Zeehan District - Tasmania
MRT Document GSB08: The ore-bodies of the Zeehan field
Company Report - Onshore 70_0635: Tonnage Estimates for Comstock Magnetite Deposits, Zeehan District - Tasmania
MRT Document URMISCB_048_50: Iron ore deposits of Tasmania
MRT Document UR1923_001_9: Rock and mineral resources of Tasmania
MRT Document UR1928B_169_178: Iron ore deposits of Tasmania.
Company Report - Onshore 00_4471: Annual Report to August 2000 - EL22/1997 - Trial Harbour Area
Company Report - Onshore 00_4424: Report for 12 month period ending February 2000 - EL2/96 - Tenth Legion Area
Company Report - Onshore 00_4424A: Report on Geological Mapping and Rock Chip Sampling of the Tenth Legion Area, EL 22/97 and EL 2/96
Company Report - Onshore 00_4424B: Review of Drilling at Tenth Legion - EL 2/96
Company Report - Onshore 81_1601: Tenth Legion Prospect (IMI Joint Venture) Interim Report November 1980- August 1981.
Company Report - Onshore 79_1378: S.P.L. 129 - Trial Harbour Area, Annual Report 1978-79
MRT Document UR1940_001_14: Report on Magnetite Deposits in Comstock District - Tasmania.


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