Lower Jumbo Mine

The Lower Jumbo Mine is a lithium mine located in Yavapai county, Arizona at an elevation of 2,900 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

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.

Site Name

Primary: Lower Jumbo Mine

Commodity

Primary: Lithium
Secondary: Feldspar
Secondary: Beryllium
Tertiary: Mica

Location

State: Arizona
County: Yavapai
District: White Picacho District

Land Status

Land ownership: Federal
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert

Mineral Deposit Model

Not available

Orebody

Form: BULBOUS, PINCH AND SWELL

Structure

Type: L
Description: Foliation In Gneiss, N 85 W, 53 N

Alterations

Not available

Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: SPODUMENE 9% AVE, 20% WHERE CONCENTRATED.

Materials

Ore: Spodumene
Ore: Feldspar
Ore: Beryl
Gangue: Albite
Gangue: Quartz
Gangue: Muscovite
Gangue: Hornblende

Comments

Comment (Deposit): THE MAIN PEGMATITE COMPRISES FIVE WELL DEFINED ZONES. (1) A DISCONTINUOUS OUTER SELVAGE OF QUARTZ, ALBITE, MUSCOVITE, AND SCHORL, ALSO MICA. (2) THE WALL ZONE ( 2 TO 55 FEET THICK ) OF PERTHITE, QUARTZ, ALBIE, AND MUSCOVITE IS MOSTLY COARSE GRAINED. (3) THE OUTER INTERMEDIATE ZONE IS COARSE GRAINED BLOCKY PERTHITE. TOURMALINE IS LOCALLY ABUNDANT. (4) THE INNER INTERMEDIATE ZONE HAS VERY COARSE PERTHITE AND MASSES OF QUARTZ. (5) THE CORE IS ARBITRARILY DESIGNATED AS HIGHER GRADE FELDSPAR THAN THE PREVIOUS ZONE.

Comment (Geology): THE DIKE IS SPODUMENE-RICH WHERE THICKEST, BUT PERTHITE-RICH ELSEWHERE. THE PEGMATITE IS MADE UP OF 2 ELONGATE BULGES, THE UPPER SPODUMENE-POOR BULGE IS EXPOSED AT THE SURFACE (170 FT X 50 FT). THE LOWER BULGE IS SPODUMENE-RICH AND RESULTS FROM DIAMOND DRILLING SHOW IT TO BE LARGER THAN THE UPPER BULGE.

Comment (Location): INFO FROM LAND.ST :(1964)

References

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

Reference (Deposit): JAHNS, R. H., 1952 , PEGMATITE DEPOSITS OF THE WHITE PICACHO DISTRICT, MARICOPA AND YAVAPAI COUNTIES, ARIZONA: ARIZONA BUREAU OF MINES BULL. 162 .

Reference (Deposit): PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.

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.