Tom Scott Mine, Tejon group (Tejon Mining Company property), Gleeson, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 44' 16'' North , 109° 49' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Sunsites Gem and Mineral Club | Pearce, Arizona | 19km |
Other/historical names associated with this locality:
Mason Mine
A former small underground Pb-Zn-Cu-Ag-Au-Mo mine located in the center of sec. 32, T.19S., R.25E., on the west slope of Gleeson Ridge, 1 mile west of Maud Hill and ½ mile NE of Gleeson, on private land. Produced 1907-1954. Operated by the Tejon Mine Leasing & Development Co., Mr. Ignacio Valdez, and Mr. Conception Quiro.
Mineralization is a replacement deposit of strongly oxidized base metal sulfide orebodies in irregular stringers in faulted and fractured Pennsylvanian-Permian Naco Group Limestone and as bunches in breccia-filled solution cavities in the limestone. Ore bodies are largest where two or more faults and fractures intersect. Associated rock units are the Gleeson Quartz Monzonite and the Sugarloaf Quartz Latite Porphyry.
Local structures include the NNW-trending Gleeson Ridge overthrust and bedding plane faults. The limestone beds strike 10W and dip 45E near the quartz monzonite contact.
Here a prominent fault zone, marked by limonitic silicified breccia, dips steeply eastward and is traceable on the surface for 1,000 feet in a N.12ºE. direction from the Tom Scott adit portal. Impure metamorphosed Permian (?) limestone forms its footwall, and lighter colored Pennsylvanian limestone, more or less metamorphosed to marble, crops out east of it. Quartz monzonite intrudes the limestones on the south and west.
The orebodies occur as irregular replacements associated with the main fault zone and probably related to transverse northeast fissures. Solution caverns and water courses are locally numerous and some of them contain accumulations of oxidized ore. Yellow and brown iron oxides and black manganese oxides are present in some cases.
Workings include an adit level, more than 1,000 feet long in a NE direction; A 400 foot raise, and a 330 foot winze lead from the tunnel.
Five shorter levels above this adit, connecting with the surface, and some winze workings below the adit. Overall the workings were 548.64 meters long and 22.86 meters deep (from the adit level).
A few thousand tons of ore were produced in the 1880's and early 1900's; 440 tons were produced in the period 1929-1933; and an additional 890 tons in 1943-1947, finally, 170 tons in 1954.
Mineralization is a replacement deposit of strongly oxidized base metal sulfide orebodies in irregular stringers in faulted and fractured Pennsylvanian-Permian Naco Group Limestone and as bunches in breccia-filled solution cavities in the limestone. Ore bodies are largest where two or more faults and fractures intersect. Associated rock units are the Gleeson Quartz Monzonite and the Sugarloaf Quartz Latite Porphyry.
Local structures include the NNW-trending Gleeson Ridge overthrust and bedding plane faults. The limestone beds strike 10W and dip 45E near the quartz monzonite contact.
Here a prominent fault zone, marked by limonitic silicified breccia, dips steeply eastward and is traceable on the surface for 1,000 feet in a N.12ºE. direction from the Tom Scott adit portal. Impure metamorphosed Permian (?) limestone forms its footwall, and lighter colored Pennsylvanian limestone, more or less metamorphosed to marble, crops out east of it. Quartz monzonite intrudes the limestones on the south and west.
The orebodies occur as irregular replacements associated with the main fault zone and probably related to transverse northeast fissures. Solution caverns and water courses are locally numerous and some of them contain accumulations of oxidized ore. Yellow and brown iron oxides and black manganese oxides are present in some cases.
Workings include an adit level, more than 1,000 feet long in a NE direction; A 400 foot raise, and a 330 foot winze lead from the tunnel.
Five shorter levels above this adit, connecting with the surface, and some winze workings below the adit. Overall the workings were 548.64 meters long and 22.86 meters deep (from the adit level).
A few thousand tons of ore were produced in the 1880's and early 1900's; 440 tons were produced in the period 1929-1933; and an additional 890 tons in 1943-1947, finally, 170 tons in 1954.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Anglesite Formula: PbSO4 |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Aurichalcite Formula: (Zn,Cu)5(CO3)2(OH)6 |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Chlorargyrite Formula: AgCl |
| ⓘ Galena Formula: PbS |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Plattnerite Formula: PbO2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Smithsonite Formula: ZnCO3 |
| ⓘ Tenorite Formula: CuO |
| ⓘ Wulfenite Formula: Pb(MoO4) References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Plattnerite | 4.DB.05 | PbO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Smithsonite | 5.AB.05 | ZnCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Aurichalcite | 5.BA.15 | (Zn,Cu)5(CO3)2(OH)6 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Plattnerite | PbO2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Wulfenite | Pb(MoO4) |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Ca | Calcium | |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tenorite | CuO |
| Zn | Zinc | |
| Zn | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Ag | Silver | |
| Ag | ⓘ Chlorargyrite | AgCl |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Plattnerite | PbO2 |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
Other Databases
| Link to USGS MRDS: | 10048118 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
- Pedregosa BasinBasin
- Southern Basin and RangeWide Rift
USA
- Arizona
- Cochise County
- Dragoon MountainsMountain Range
- Cochise County
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References
Hamilton, Patrick (1881) The Resources of Arizona - A Manual of Reliable Information Concerning the Territory. The Legislature of the Territory of Arizona. p.40
Tom Scott Mine, Tejon group, Gleeson, Turquoise Mining District, Cochise County, Arizona, USA