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El Paso Mine, Franklin Mountains (Franklin Range), El Paso County, Texas, USAi
| Regional Level Types | |
|---|---|
| El Paso Mine | Deposit |
| Franklin Mountains (Franklin Range) | Mountain Range |
| El Paso County | County |
| Texas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 56' 9'' North , 106° 29' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Westway | 4,188 (2011) | 8.9km |
| Vinton | 1,973 (2017) | 11.0km |
| Canutillo | 6,321 (2011) | 11.0km |
| Prado Verde | 246 (2011) | 12.9km |
| Anthony | 5,517 (2017) | 13.1km |
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 |
|---|---|---|
| El Paso Mineral and Gem Society, Inc. | El Paso, Texas | 20km |
Other/historical names associated with this locality:
El Paso tin deposit; Franklin Mountain Tin deposits; Tin Mines; Texas Tin Mines
A Sn-W occurrence/mine located 9 miles (15 km) N of El Paso, on private land. Discovered in 1899. Produced during the period 1909-1912. The USGS MRDS database accuracy for this locality is not stated.
Mineralization is a Sn-W deposit (Mineral occurrence model information: Model code: 47; USGS model code: 15b; Deposit model name: Sn veins), hosted in granite. The ore body is pinch and swell, strikes E-W to N65W and dips nearly vertically at a width of 0.61 meter (2 feet) and a length of 396.24 meters and a depth-to-top of 0 meters. Six veins occur nearly parallel to the mountain front that pinch out upward and downward. Local alteration includes scattered silicification, chloritization, and tourmalinization. Associated rocks include the Neoproterozoic Red Bluff Granite. Local rocks include granite.
The host rock contains microcline, plagioclase, tourmaline, and zircon and has an average Sn content of 0.0005%. Red Bluff Granite was recognized to be one of the youngest Precambrian intrusions in the Franklin Mountains. It is late Proterozoic, approximately 950 million years old. Romarchite (SnO) was reported in microcline pegmatite, but the data do not support a definite identification. The Bureau of Economic Geology's X-ray diffraction of heavy-mineral separates of samples from the same locality indicates the presence of cassiterite, fluorite, pyrite, and topaz, but no romarchite.
Workings include surface and underground openings comprised of open cuts and a 50 foot shaft. Pure Sn metal was produced at a small smelter built on site.
Prodced $ $6,813.00 (period values) of Sn metal.
Alteration: Scattered Silicification, Chloritization, Tourmalinization
Deposit: Six veins nearly parallel to the mountain front that pinch out upward and downward. This record incorporates data from duplicate mrds record no. D001353 by james e. Elliot (73 06) which has been deleted.
Deposit type: Sn veins
Geology: The host rock contains microcline, plagioclase, tourmaline, and zircon and has an average tin content of 0.0005%. Red bluff granite was recognized to be one of the youngest precambrian intrusions in the franklin mountains. It is late proterozoic, approximately 950 m.y. Old. Romarchite (sno) was reported in microcline pegmatite, but the data do not support a definite identification. The bureau of economic geology's x-ray diffraction of heavy-mineral separates of samples from the same locality indicates the presence of cassiterite, fluorite, pyrite, and topaz, but no romarchite.
Rock formation(s): Red Bluff Granite
Mineralization is a Sn-W deposit (Mineral occurrence model information: Model code: 47; USGS model code: 15b; Deposit model name: Sn veins), hosted in granite. The ore body is pinch and swell, strikes E-W to N65W and dips nearly vertically at a width of 0.61 meter (2 feet) and a length of 396.24 meters and a depth-to-top of 0 meters. Six veins occur nearly parallel to the mountain front that pinch out upward and downward. Local alteration includes scattered silicification, chloritization, and tourmalinization. Associated rocks include the Neoproterozoic Red Bluff Granite. Local rocks include granite.
The host rock contains microcline, plagioclase, tourmaline, and zircon and has an average Sn content of 0.0005%. Red Bluff Granite was recognized to be one of the youngest Precambrian intrusions in the Franklin Mountains. It is late Proterozoic, approximately 950 million years old. Romarchite (SnO) was reported in microcline pegmatite, but the data do not support a definite identification. The Bureau of Economic Geology's X-ray diffraction of heavy-mineral separates of samples from the same locality indicates the presence of cassiterite, fluorite, pyrite, and topaz, but no romarchite.
Workings include surface and underground openings comprised of open cuts and a 50 foot shaft. Pure Sn metal was produced at a small smelter built on site.
Prodced $ $6,813.00 (period values) of Sn metal.
Alteration: Scattered Silicification, Chloritization, Tourmalinization
Deposit: Six veins nearly parallel to the mountain front that pinch out upward and downward. This record incorporates data from duplicate mrds record no. D001353 by james e. Elliot (73 06) which has been deleted.
Deposit type: Sn veins
Geology: The host rock contains microcline, plagioclase, tourmaline, and zircon and has an average tin content of 0.0005%. Red bluff granite was recognized to be one of the youngest precambrian intrusions in the franklin mountains. It is late proterozoic, approximately 950 m.y. Old. Romarchite (sno) was reported in microcline pegmatite, but the data do not support a definite identification. The bureau of economic geology's x-ray diffraction of heavy-mineral separates of samples from the same locality indicates the presence of cassiterite, fluorite, pyrite, and topaz, but no romarchite.
Rock formation(s): Red Bluff Granite
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
11 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ 'Feldspar Group' |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ 'Limonite' |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Romarchite ? Formula: SnO |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Stannite Formula: Cu2FeSnS4 |
| ⓘ Titanite Formula: CaTiO(SiO4) |
| ⓘ Topaz Formula: Al2(SiO4)(F,OH)2 |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ 'Wolframite Group' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Stannite | 2.CB.15a | Cu2FeSnS4 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Romarchite ? | 4.AC.20 | SnO |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | 'Wolframite Group' | 4.DB.30 va | |
| Group 9 - Silicates | |||
| ⓘ | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Romarchite | SnO |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Na | Sodium | |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | Aluminium | |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stannite | Cu2FeSnS4 |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Stannite | Cu2FeSnS4 |
| Cu | Copper | |
| Cu | ⓘ Stannite | Cu2FeSnS4 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Sn | ⓘ Romarchite | SnO |
| Sn | ⓘ Stannite | Cu2FeSnS4 |
Other Databases
| Link to USGS MRDS: | 10085695 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mazatzal DomainDomain
- Orogrande BasinBasin
- Rio Grande RiftNarrow Rift
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El Paso Mine, Franklin Mountains, El Paso County, Texas, USA