The Grand Pacific Claim is a copper mine located in Coconino county, Arizona at an elevation of 6,099 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 6,099 Feet (1,859 Meters)
Commodity: Copper
Lat, Long: 36.62972, -111.44528
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Grand Pacific Claim MRDS details
Site Name
Primary: Grand Pacific Claim
Secondary: Mardun
Secondary: White Mesa
Secondary: Navajo Pacific
Secondary: Zontelli Western
Commodity
Primary: Copper
Tertiary: Silver
Location
State: Arizona
County: Coconino
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1955
Time Period: - 1955
Material type: ORE CU
Description: Cp_Grade: ^0.74 % Cu
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year Last Production: 1967
Discovery Year: 1885
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: L
Description: 10 Mi E Of Echo Cliffs Monocline
Alterations
Alteration Type: L
Alteration Text: Oxidation Of Copper Sulfiors Was Strong
Rocks
Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: 12 CHANNEL SAMPLES PRODUCED THE FOLLOWING INFORMATION: 6 SAMPLES PRODUCING 0.23 OZ. AG AND 1.02 % CU, 3 SAMPLES PRODUCING 0.18 OZ. AG AND 0.82 % CU, 3 SAMPLES PRODUCING 0.21 OZ. AG AND 0.44 % CU, AVERAGE OF 0.82 % CU.
Materials
Ore: Chrysocolla
Ore: Cuprite
Ore: Malachite
Ore: Chalcocite
Ore: Bornite
Gangue: Limonite
Comments
Comment (Commodity): MAJOR AND MINOR MINERALS ARE REPRESENTATIVE OF THE WHOLE WHITE MESA DISTRICT.
Comment (Production): ITEM 8 : TOTAL TONNAGE PRODUCED UP TO 1955
Comment (Development): OPERATED BY MARDUN COPPER CO., 1941-43, CORONADO COPPER AND ZINC, 1943-45. 1917, NAVAJO COPPER COMPANY. IN 1960'S,OPERATED BY ZONTELLI WESTERN CO AND WHITE MESA CO.
Comment (Deposit): AREA OF MINERALIZED BODY EQUALS 350,000 SQ. FT. COPPER MINERALS COAT SANDSTONE GRAINS AND REPLACE CEMENTING MATERIAL.
Comment (Reserve-Resource): COPPER ORE RESERVES ARE BROKEN DOWN AS FOLLOWS: 14,000,000 TONS OF INFERRED ORE IN CONCEALED ORE BODIES, 1,645,000 TONS OF INDICATED ORE IN PROBABLE EXTENSIONS, AND 615,000 TONS OF INDICATED ORE BEING REASONABLY ASSURED. THESE FIGURES ARE REPRESENTATIVE OF THE WHOLE WHITE MESA DISTRICT.
Comment (Deposit): THE INFORMATION FOUND UNDER RESERVES AND POTENTIAL RESOURCES; DESCRIPTION OF DEPOSIT (EXCLUDING HOST ROCK TYPE); AND MAIN AND MINOR ORE MINERALS ARE REPRESENTATIVE OF THE WHOLE WHITE MESA MINING DISTRICT. GRAND PACIFIC CLAIM BEING JUST ONE OF THE CLAIMS THAT COMPRISE THIS DISTRICT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Workings): OPEN PIT OPERATION, 75 FT DEEP IN 1960'S
Comment (Geology): IT IS UNCERTAIN IF DEPOSIT IS METRORIC OR TELETHERMAL.
Comment (Deposit): Discovery Year: 1880'S
References
Reference (Deposit): MAYO, E. B., 1955 , METILLIFEROUS MINERALS AND MINERAL FUELS, MINERAL RESOURCES, NAVAJO-HOPI INDIAN RESERVATION, ARIZONA-UTAH, VOLUME I, P. 19 - 32 .
Reference (Deposit): READ, C. B., 1943 , COPPER DEPOSITS OF THE WHITE MESA MINING DISTRICT, COCONINO CO., ARIZONA: USGS OPEN FILE REPORT.
Reference (Deposit): USBM CARD FILES.
Reference (Deposit): ADMR MARDUN MINE FILE
Reference (Deposit): ABGMT-USBM FILE DATA.
Reference (Production): MAYO, 1955
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
