Croesus Mine (Dobie-Leyson), Munro Township, Cochrane District, Ontario, Canada
| Latitude & Longitude (WGS84): | 48° 33' 1'' North , 80° 14' 48'' West |
|---|---|
| Latitude & Longitude (decimal): | 48.55028,-80.24667 |
| GeoHash: | G#: f0wujyq1v |
| Locality type: | Mine |
| Köppen climate type: | Dfb : Warm-summer humid continental climate |
Gold Mine off of Highway 101. This mine produced the richest ore ever mined in Ontario.
Samples of high-grade Croesus gold ore, possessed by the Ontario Department of mines, consisted of highly shattered grey quartz, cemented by irregular veinlets of Gold.
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsMineral List
9 valid minerals.
Detailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS Reference: Satterly, J. (1951): Geology of Munro Township. Sixtieth Annual Report of the Ontario Department of Mines. 60, Part 8. |
| ⓘ Chalcopyrite Formula: CuFeS2 Reference: MDI Number: MDI42A09SE00012 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Reference: MDI Number: MDI42A09SE00012 |
| ⓘ Gold Formula: Au Reference: Satterly, J. (1951): Geology of Munro Township. Sixtieth Annual Report of the Ontario Department of Mines. 60, Part 8. |
| ⓘ Pyrite Formula: FeS2 Reference: Satterly, J. (1951): Geology of Munro Township. Sixtieth Annual Report of the Ontario Department of Mines. 60, Part 8. |
| ⓘ Pyrrhotite Formula: Fe7S8 Reference: MDI Number: MDI42A09SE00012 |
| ⓘ Quartz Formula: SiO2 Reference: Satterly, J. (1951): Geology of Munro Township. Sixtieth Annual Report of the Ontario Department of Mines. 60, Part 8. |
| ⓘ Silver Formula: Ag Reference: MDI Number: MDI42A09SE00012 |
| ⓘ Sphalerite Formula: ZnS Reference: MDI Number: MDI42A09SE00012 |
| ⓘ Sylvanite Formula: (Au,Ag)2Te4 Reference: MDI Number: MDI42A09SE00012 |
| ⓘ 'Tourmaline' Formula: A(D3)G6(T6O18)(BO3)3X3Z Reference: MDI Number: MDI42A09SE00012 |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | 'Gold' | 1.AA.05 | Au |
| ⓘ | 'Silver' | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | 'Arsenopyrite' | 2.EB.20 | FeAsS |
| ⓘ | 'Chalcopyrite' | 2.CB.10a | CuFeS2 |
| ⓘ | 'Pyrite' | 2.EB.05a | FeS2 |
| ⓘ | 'Pyrrhotite' | 2.CC.10 | Fe7S8 |
| ⓘ | 'Sphalerite' | 2.CB.05a | ZnS |
| ⓘ | 'Sylvanite' | 2.EA.05 | (Au,Ag)2Te4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | 'Quartz' | 4.DA.05 | SiO2 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Tourmaline' | - | A(D3)G6(T6O18)(BO3)3X3Z |
List of minerals arranged by Dana 8th Edition classification
| Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
|---|---|---|---|
| Metals, other than the Platinum Group | |||
| ⓘ | Gold | 1.1.1.1 | Au |
| ⓘ | Silver | 1.1.1.2 | Ag |
| Group 2 - SULFIDES | |||
| AmXp, with m:p = 1:1 | |||
| ⓘ | Pyrrhotite | 2.8.10.1 | Fe7S8 |
| ⓘ | Sphalerite | 2.8.2.1 | ZnS |
| AmBnXp, with (m+n):p = 1:1 | |||
| ⓘ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Arsenopyrite | 2.12.4.1 | FeAsS |
| ⓘ | Pyrite | 2.12.1.1 | FeS2 |
| ⓘ | Sylvanite | 2.12.13.3 | (Au,Ag)2Te4 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Tourmaline' | - | A(D3)G6(T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| B | Boron | |
|---|---|---|
| B | ⓘ Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| Si | Silicon | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe7S8 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe7S8 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Ag | Silver | |
| Ag | ⓘ Silver | Ag |
| Ag | ⓘ Sylvanite | (Au,Ag)2Te4 |
| Te | Tellurium | |
| Te | ⓘ Sylvanite | (Au,Ag)2Te4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Au | ⓘ Sylvanite | (Au,Ag)2Te4 |
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
| Neoarchean - Mesoarchean 2500 - 3200 Ma ID: 615085 | Mafic to intermediate metavolcanic rocks Age: Archean (2500 - 3200 Ma) Comments: Superior Province Lithology: Basaltic and andesitic flows, tuffs and breccias, chert, iron formation, minor metasedimentary and intrusive rocks, related migmatites Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1] |
| Neoarchean 2500 - 2800 Ma ID: 3187495 | Archean sedimentary rocks Age: Neoarchean (2500 - 2800 Ma) Comments: Superior Province Lithology: Metasedimentary schist 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] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
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Croesus Mine, Munro Township, Cochrane District, Ontario, Canada