Mohawk Canyon pipe (Collapse feature 494), Mohawk Canyon, Coconino County, Arizona, USAi
Regional Level Types | |
---|---|
Mohawk Canyon pipe (Collapse feature 494) | Pipe |
Mohawk Canyon | Canyon |
Coconino County | County |
Arizona | State |
USA | Country |
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Latitude & Longitude (WGS84):
36° 7' 30'' North , 113° 0' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Supai | 208 (2017) | 31.1km |
Mindat Locality ID:
46318
Long-form identifier:
mindat:1:2:46318:7
GUID (UUID V4):
77f90cb5-fd1b-4db7-a979-e0fe37d0798d
A collapse structure (breccia pipe) with U-Cu mineralization. Located in sec. 26, T32N, R7W, G&SRM, on the West side of Mohawk Canyon. A 19th-century Cu prospect.
The Mohawk Canyon pipe is considered to have the greatest potential for an ore body of any pipe on the Hualapai Indian Reservation. It was originally identified as a collapse by the senior author in June 1983 while mapping collapse structures in the Mohawk Canyon area. Although the turn-of-the century Grand Canyon miners probably did not recognize this area as a breccia pipe, they obviously discovered its Cu minerals (malachite, azurite, and chrysocolla) during the 19th century. This timing is suggested by the square nails in the timbers that are lying about on the ground near two adits driven into the west side of Mohawk Canyon, at the cliff edge. The adits lie on the outermost ring fracture of the pipe. An AMT survey could not be made over this pipe because of its proximity to the cliff.
Mineralization is U and Cu minerals. Concentric ring fractures with semicircular drainage eroded along one inner ring fracture. Limonite pseudomorphs and molds after pyrite. Concentric radially inward dipping beds.
Workings include 2 adits. Drilled by USGS in 1984 (Wenrich and others,
1988).
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
7 valid minerals.
Detailed Mineral List:
ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
ⓘ Brochantite Formula: Cu4(SO4)(OH)6 |
ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
ⓘ Galena Formula: PbS Description: Occurs as crystals - noted in drill cores. |
ⓘ 'Limonite' Description: As pseudomorphs & casts after pyrite. |
ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
ⓘ Pyrite Formula: FeS2 |
ⓘ Pyrite var. Bravoite Formula: (Fe,Ni)S2 Description: Minor presence. |
ⓘ Quartz Formula: SiO2 |
ⓘ Quartz var. Chalcedony Formula: SiO2 Description: Colloform & celadonite-stained. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Galena | 2.CD.10 | PbS |
ⓘ | Pyrite var. Bravoite | 2.EB.05a | (Fe,Ni)S2 |
ⓘ | 2.EB.05a | FeS2 | |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
ⓘ | 4.DA.05 | SiO2 | |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
Group 9 - Silicates | |||
ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Unclassified | |||
ⓘ | 'Limonite' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
H | ⓘ Malachite | Cu2(CO3)(OH)2 |
C | Carbon | |
C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
C | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
O | ⓘ Quartz var. Chalcedony | SiO2 |
O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
O | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | ⓘ Quartz | SiO2 |
Al | Aluminium | |
Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | Silicon | |
Si | ⓘ Quartz var. Chalcedony | SiO2 |
Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
S | ⓘ Galena | PbS |
S | ⓘ Pyrite | FeS2 |
Fe | Iron | |
Fe | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
Fe | ⓘ Pyrite | FeS2 |
Ni | Nickel | |
Ni | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
Cu | Copper | |
Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Mojave DomainDomain
USA
- Arizona
- Grand Canyon EmbaymentBasin
- ⭔Hualapai Indian ReservationReservation
- Colorado PlateauPlateau
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