Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USAi
Regional Level Types | |
---|---|
Contention-Grand Central Mine group | - not defined - |
Tombstone Mining District | Mining District |
Cochise County | County |
Arizona | State |
USA | Country |
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Latitude & Longitude (WGS84):
31° 42' 5'' North , 110° 3' 42'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Tombstone | 1,312 (2017) | 1.4km |
Whetstone | 2,617 (2017) | 26.3km |
Saint David | 1,699 (2011) | 26.7km |
Huachuca City | 1,755 (2017) | 27.0km |
Sierra Vista | 43,355 (2017) | 28.1km |
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 |
---|---|---|
Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 28km |
Sunsites Gem and Mineral Club | Pearce, Arizona | 32km |
Mindat Locality ID:
32909
Long-form identifier:
mindat:1:2:32909:6
GUID (UUID V4):
c766f27b-3ece-4d7d-8487-e9fcc5ac7cd7
A former medium-output surface and underground Ag-Au-Pb-Cu-Zn group of mines located in the SE ¼ sec. 11 & the NE¼NE¼ sec. 14, T.20S., R.22E, 1 mile S of Tombstone, on private land. Discovered and started producing in 1885. Owned at times, or in part, by the Western Mining Co., Grand Central Mining Co., Tombstone Mill & Mining Co., Head Center Co., Head Center & Tranquility Co., Contention Mining Co., Tombstone Consolidated Mines Co., Bunker Hill Mines Co., and the Tombstone Development Co. Operated by the Cochise Silver Mines Inc. (1987); and, Cowichan Resources Inc. (1989). The Grand Central Mine is often referred to as part of this mine due to common ownership.
Mineralization is oxidized argentiferous and auriferous galena and minor copper and zinc ores in large, rich orebodies in faulted and fractured segments of a large dike, and in brecciated footwall zones of the dike. Ore was also found in replacements of Cretaceous Bisbee Group limestone beds where intersected by "northeast" fissures. The ore zone is 1005.84 meters long, 304.8 meters wide, with a depth to bottom of 243.84 meters. The Bisbee Limestone is recrystallized. An associated rock unit is the Schiefflin Granodiorite.
Local structures include the Tombstone Basin; NE-trending fissures, and NW-trending faults. The Contention Dike is faulted by a series of NW-trending normal faults.
Workings included extensive shaft(s) and had a total length of 3048 meters and a depth of 243.84 meters. This mine had 3 shafts: the Central shaft, the Pump shaft, used for UTM 1000 feet north of the Grand Central shaft. 10 levels of workings. The workings described here are in the Contention, Head Center, and Flora Morrison claims only. The main workings were in the upper 500 feet, the 6th level is the most extensive. One of the earliest and most productive mine groups of the district. Over $10,000,000 was produced prior to 1886 and several hundred thousand tons were produced from the 1880's to the early 1900's. There was some sporadic production up to 1929. Most productive ore zone of the district when combined with the Grand Central Mine. See the Grand Central for production after 1885 in ABGMT-USBM file data. Workings in 3 claims described here: Flora Morrison, Contention, and the Head Center. This mine was under development to leach dump and tailings material in 1987. This was an open pit-cyanide heap leaching operation in 1989.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities28 valid minerals. 6 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 1 erroneous literature entry.
Rock Types Recorded
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Rock list contains entries from the region specified including sub-localities
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Alphabetical List Tree DiagramDetailed Mineral List:
ⓘ Formula: Sr2Mn3+(AsO4)2(OH) Locality: Grand Central Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA - erroneously reported Description: see https://www.mindat.org/mesg-573772.html |
ⓘ Altaite Formula: PbTe Description: Occurs rimmed by dunhamite. |
ⓘ Anatase Formula: TiO2 |
✪ Backite (TL) Formula: Pb2AlTeO6Cl Type Locality: Habit: Hexagonal plates stacked on each other. Colour: Gray to white. |
✪ Bairdite Formula: Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O Habit: Monoclinic crystal shaped like a spear. Colour: Bright, fluorescent green. |
ⓘ Cerussite Formula: PbCO3 |
ⓘ Chlorargyrite Formula: AgCl Localities: |
ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
ⓘ 'Dunhamite' Formula: PbTeO3(?) Description: ccurs as rims on altaite and associated with rodalquilarite. |
ⓘ Emmonsite Formula: Fe3+2(TeO3)3 · 2H2O |
ⓘ Fairbankite (TL) Formula: Pb2+12(Te4+O3)11(SO4) Type Locality: Habit: Crystals less than 0.5 mm Colour: Colorless Description: Tiny, clear crystals in thin crusts plastered of walls of voids left by leaching of galena. Closely associated with oboyerite. |
✪ Flaggite (TL) Formula: Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) Type Locality: |
ⓘ Galena Formula: PbS Localities: Contention Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA Grand Central Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA Tranquility Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA |
ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag Localities: Contention Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA Grand Central Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA Tranquility Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA |
ⓘ 'Girdite' Formula: H2Pb3(Te4+O3)(Te6+O6) Description: Occurs as dense, chalky spherules to 3 mm diameter & some to 6 mm. |
ⓘ Gold Formula: Au Localities: Reported from at least 6 localities in this region. Description: Occurs in altered dikes as visible flakes, particularly near the dike walls. References: |
ⓘ Hessite Formula: Ag2Te |
ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
ⓘ 'K Feldspar' Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite. |
ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite. |
ⓘ Linarite Formula: PbCu(SO4)(OH)2 |
ⓘ Murphyite (TL) Formula: Pb(Te6+O4) Type Locality: |
ⓘ 'Oboyerite' (FRL) Type Locality: Colour: Milk-white Description: Occurs as spherules perched on clear, botryoidal opal (hyalite), in turn coating jarosite filling voids left in altered shale by removal of galena. |
ⓘ Opal Formula: SiO2 · nH2O Localities: Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite. |
ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O Localities: References: |
ⓘ Ottoite Formula: Pb2TeO5 |
ⓘ Plumbotellurite Formula: Pb(TeO3) |
ⓘ Pyrite Formula: FeS2 |
ⓘ Quartz Formula: SiO2 Localities: Description: Drusy. |
ⓘ Raspite Formula: Pb(WO4) |
ⓘ Rodalquilarite Formula: Fe2(TeO2OH)3(TeO3)Cl |
✪ Schieffelinite Formula: Pb10Te6+6O20(OH)14(SO4)(H2O)5 |
ⓘ Silver Formula: Ag Localities: Description: Occurs as small masses of wire silver clinging to iron-stained, drusy quartz. References: |
✪ Tombstoneite (TL) Formula: (Ca0.5Pb0.5)Pb3Cu2+6Te6+2O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O Type Locality: |
✪ Winstanleyite (TL) Formula: TiTe4+3O8 Type Locality: Habit: simple cubes to 0.5 mm on an edge Colour: Yellow, tan, cream-colored Description: Occurs in a quartz-adularia-opal rock formed by alteration of granodiorite. |
ⓘ Wulfenite Formula: Pb(MoO4) |
Gallery:
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 | |||
ⓘ | Hessite | 2.BA.60 | Ag2Te |
ⓘ | Altaite | 2.CD.10 | PbTe |
ⓘ | Galena | 2.CD.10 | PbS |
ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 3 - Halides | |||
ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
Group 4 - Oxides and Hydroxides | |||
ⓘ | 'Oboyerite' (TL) | 4.. | |
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
ⓘ | var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
ⓘ | Anatase | 4.DD.05 | TiO2 |
ⓘ | Raspite | 4.DG.20 | Pb(WO4) |
ⓘ | Winstanleyite (TL) | 4.JK.05 | TiTe4+3O8 |
ⓘ | Fairbankite (TL) | 4.JK.50 | Pb2+12(Te4+O3)11(SO4) |
ⓘ | Plumbotellurite | 4.JK.55 | Pb(TeO3) |
ⓘ | Rodalquilarite | 4.JL.05 | Fe2(TeO2OH)3(TeO3)Cl |
ⓘ | 'Girdite' | 4.JL.30 | H2Pb3(Te4+O3)(Te6+O6) |
ⓘ | Emmonsite | 4.JM.10 | Fe3+2(TeO3)3 · 2H2O |
ⓘ | Tombstoneite (TL) | 4.JN. | (Ca0.5Pb0.5)Pb3Cu2+6Te6+2O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Cerussite | 5.AB.15 | PbCO3 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
ⓘ | Ottoite | 7.AB.25 | Pb2TeO5 |
ⓘ | Murphyite (TL) | 7.AD. | Pb(Te6+O4) |
ⓘ | Backite (TL) | 7.BC. | Pb2AlTeO6Cl |
ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
ⓘ | Linarite | 7.BC.65 | PbCu(SO4)(OH)2 |
ⓘ | Schieffelinite | 7.CD.55 | Pb10Te6+6O20(OH)14(SO4)(H2O)5 |
ⓘ | Bairdite | 7.DF. | Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O |
ⓘ | Flaggite (TL) | 7.DF. | Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) |
ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
Group 8 - Phosphates, Arsenates and Vanadates | |||
ⓘ | Aldomarinoite ? | 8.BG. | Sr2Mn3+(AsO4)2(OH) |
Group 9 - Silicates | |||
ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Unclassified | |||
ⓘ | 'K Feldspar' | - | |
ⓘ | 'Dunhamite' | - | PbTeO3(?) |
ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
H | ⓘ Emmonsite | Fe23+(TeO3)3 · 2H2O |
H | ⓘ Girdite | H2Pb3(Te4+O3)(Te6+O6) |
H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
H | ⓘ Linarite | PbCu(SO4)(OH)2 |
H | ⓘ Opal | SiO2 · nH2O |
H | ⓘ Rodalquilarite | Fe2(TeO2OH)3(TeO3)Cl |
H | ⓘ Schieffelinite | Pb10Te66+O20(OH)14(SO4)(H2O)5 |
H | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
H | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
H | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
H | ⓘ Aldomarinoite | Sr2Mn3+(AsO4)2(OH) |
C | Carbon | |
C | ⓘ Cerussite | PbCO3 |
O | Oxygen | |
O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
O | ⓘ Anatase | TiO2 |
O | ⓘ Cerussite | PbCO3 |
O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
O | ⓘ Dunhamite | PbTeO3(?) |
O | ⓘ Emmonsite | Fe23+(TeO3)3 · 2H2O |
O | ⓘ Fairbankite | Pb122+(Te4+O3)11(SO4) |
O | ⓘ Girdite | H2Pb3(Te4+O3)(Te6+O6) |
O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
O | ⓘ Linarite | PbCu(SO4)(OH)2 |
O | ⓘ Opal | SiO2 · nH2O |
O | ⓘ Plumbotellurite | Pb(TeO3) |
O | ⓘ Quartz | SiO2 |
O | ⓘ Raspite | Pb(WO4) |
O | ⓘ Rodalquilarite | Fe2(TeO2OH)3(TeO3)Cl |
O | ⓘ Schieffelinite | Pb10Te66+O20(OH)14(SO4)(H2O)5 |
O | ⓘ Winstanleyite | TiTe34+O8 |
O | ⓘ Wulfenite | Pb(MoO4) |
O | ⓘ Ottoite | Pb2TeO5 |
O | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
O | ⓘ Backite | Pb2AlTeO6Cl |
O | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
O | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
O | ⓘ Aldomarinoite | Sr2Mn3+(AsO4)2(OH) |
O | ⓘ Murphyite | Pb(Te6+O4) |
Al | Aluminium | |
Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Al | ⓘ Backite | Pb2AlTeO6Cl |
Si | Silicon | |
Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
Si | ⓘ Opal | SiO2 · nH2O |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Fairbankite | Pb122+(Te4+O3)11(SO4) |
S | ⓘ Galena | PbS |
S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
S | ⓘ Linarite | PbCu(SO4)(OH)2 |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Schieffelinite | Pb10Te66+O20(OH)14(SO4)(H2O)5 |
S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
S | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
S | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
S | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Cl | Chlorine | |
Cl | ⓘ Chlorargyrite | AgCl |
Cl | ⓘ Rodalquilarite | Fe2(TeO2OH)3(TeO3)Cl |
Cl | ⓘ Backite | Pb2AlTeO6Cl |
K | Potassium | |
K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
Ca | Calcium | |
Ca | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Ti | Titanium | |
Ti | ⓘ Anatase | TiO2 |
Ti | ⓘ Winstanleyite | TiTe34+O8 |
Mn | Manganese | |
Mn | ⓘ Aldomarinoite | Sr2Mn3+(AsO4)2(OH) |
Fe | Iron | |
Fe | ⓘ Emmonsite | Fe23+(TeO3)3 · 2H2O |
Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
Fe | ⓘ Pyrite | FeS2 |
Fe | ⓘ Rodalquilarite | Fe2(TeO2OH)3(TeO3)Cl |
Cu | Copper | |
Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Cu | ⓘ Linarite | PbCu(SO4)(OH)2 |
Cu | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
Cu | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
Cu | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
As | Arsenic | |
As | ⓘ Aldomarinoite | Sr2Mn3+(AsO4)2(OH) |
Se | Selenium | |
Se | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Sr | Strontium | |
Sr | ⓘ Aldomarinoite | Sr2Mn3+(AsO4)2(OH) |
Mo | Molybdenum | |
Mo | ⓘ Wulfenite | Pb(MoO4) |
Ag | Silver | |
Ag | ⓘ Chlorargyrite | AgCl |
Ag | ⓘ Hessite | Ag2Te |
Ag | ⓘ Silver | Ag |
Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Te | Tellurium | |
Te | ⓘ Altaite | PbTe |
Te | ⓘ Dunhamite | PbTeO3(?) |
Te | ⓘ Emmonsite | Fe23+(TeO3)3 · 2H2O |
Te | ⓘ Fairbankite | Pb122+(Te4+O3)11(SO4) |
Te | ⓘ Girdite | H2Pb3(Te4+O3)(Te6+O6) |
Te | ⓘ Hessite | Ag2Te |
Te | ⓘ Plumbotellurite | Pb(TeO3) |
Te | ⓘ Rodalquilarite | Fe2(TeO2OH)3(TeO3)Cl |
Te | ⓘ Schieffelinite | Pb10Te66+O20(OH)14(SO4)(H2O)5 |
Te | ⓘ Winstanleyite | TiTe34+O8 |
Te | ⓘ Ottoite | Pb2TeO5 |
Te | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
Te | ⓘ Backite | Pb2AlTeO6Cl |
Te | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
Te | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Te | ⓘ Murphyite | Pb(Te6+O4) |
W | Tungsten | |
W | ⓘ Raspite | Pb(WO4) |
Au | Gold | |
Au | ⓘ Gold | Au |
Pb | Lead | |
Pb | ⓘ Altaite | PbTe |
Pb | ⓘ Cerussite | PbCO3 |
Pb | ⓘ Dunhamite | PbTeO3(?) |
Pb | ⓘ Fairbankite | Pb122+(Te4+O3)11(SO4) |
Pb | ⓘ Galena | PbS |
Pb | ⓘ Girdite | H2Pb3(Te4+O3)(Te6+O6) |
Pb | ⓘ Linarite | PbCu(SO4)(OH)2 |
Pb | ⓘ Plumbotellurite | Pb(TeO3) |
Pb | ⓘ Raspite | Pb(WO4) |
Pb | ⓘ Schieffelinite | Pb10Te66+O20(OH)14(SO4)(H2O)5 |
Pb | ⓘ Wulfenite | Pb(MoO4) |
Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Pb | ⓘ Ottoite | Pb2TeO5 |
Pb | ⓘ Bairdite | Pb2Cu42+Te26+O10(OH)2(SO4) · H2O |
Pb | ⓘ Backite | Pb2AlTeO6Cl |
Pb | ⓘ Flaggite | Pb4Cu42+Te26+(SO4)2O11(OH)2(H2O) |
Pb | ⓘ Tombstoneite | (Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
Pb | ⓘ Murphyite | Pb(Te6+O4) |
Other Databases
Link to USGS MRDS: | 10048228 |
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Localities in this Region
- Arizona
- Cochise County
- Tombstone Mining District
- Contention-Grand Central Mine group
- Tombstone Mining District
- Cochise County
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
- Pedregosa BasinBasin
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