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Cathey Mining District (Cathay Mining District), West Belt, Mariposa County, California, USAi
Regional Level Types
Cathey Mining District (Cathay Mining District)Mining District
West Belt- not defined -
Mariposa CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 26' 13'' North , 120° 5' 36'' West
Latitude & Longitude (decimal):
Mindat Locality ID:
249015
Long-form identifier:
mindat:1:2:249015:4
GUID (UUID V4):
9b9318c3-8618-40c2-8f80-d531c5fc2f9b


The Cathey or Cathay district is in southwestern Mariposa County about 10 miles southwest of Mariposa and near the town of Catheys Valley.

The area was first placer-mined during the gold rush, and lode mining began in the 1850s. The principal mines were the Francis, Moore Hill, and Rich mines, which were last worked in the 1930s. A number of north-trending quartz veins up to 9 feet thick, in granodiorite and schist, contain native gold and sulfides. The sulfides, which include pyrite, arsenopyrite, and galena, sometimes are extremely abundant.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity 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-localities

13 valid minerals.

Detailed Mineral List:

β“˜ Arsenopyrite
Formula: FeAsS
β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
β“˜ Cuprite
Formula: Cu2O
β“˜ Galena
Formula: PbS
β“˜ Gold
Formula: Au
Localities: Reported from at least 21 localities in this region.
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
Description: Occurs as fine drusy coatings and excellent crystallized material.
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Description: Occurs in a muscovite-quartz schist.
β“˜ Pyrite
Formula: FeS2
Localities: Reported from at least 6 localities in this region.
β“˜ Quartz
Formula: SiO2
Localities: Reported from at least 11 localities in this region.
β“˜ Tenorite
Formula: CuO
Description: Large mass mined.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Bornite2.BA.15Cu5FeS4
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Galena2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
β“˜Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
β“˜Cuprite4.AA.10Cu2O
β“˜Tenorite4.AB.10CuO
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1

List of minerals for each chemical element

HHydrogen
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
Cβ“˜ AzuriteCu3(CO3)2(OH)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
OOxygen
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ CupriteCu2O
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ TenoriteCuO
AlAluminium
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ BorniteCu5FeS4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ GalenaPbS
Sβ“˜ PyriteFeS2
KPotassium
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ CupriteCu2O
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ TenoriteCuO
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
AuGold
Auβ“˜ GoldAu
PbLead
Pbβ“˜ GalenaPbS

Localities in this Region

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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