Pacer Group

Site Name

Primary: Pacer Group

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Commodity

Primary: Tin
Primary: Niobium (Columbium)
Primary: Tantalum
Tertiary: Sand and Gravel, Construction
Tertiary: Quartz
Tertiary: Lithium
Tertiary: Beryllium
Tertiary: Feldspar
Tertiary: Mica

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Location

State: South Dakota
County: Pennington
District: Keystone Area

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Land Status

Land ownership: Private
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.

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Holdings

Type: Patented
Type: Private Lease

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Workings

Type: Surface

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Ownership

Owner Name: Pacer Corp.
Percent: 100.0
Home Office: South Dakota
Info Year: 1982

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Unknown
Milling Method: Gravity
Year First Production: 1895
Discovery Year: 1883
Years of Production:
Organization:
Significant: Y

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Physiography

General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills

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Mineral Deposit Model

Not available

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Orebody

Not available

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Structure

Not available

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Alterations

Not available

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Rocks

Not available

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Analytical Data

Not available

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Materials

Unknown: Spodumene
Unknown: Tourmaline
Unknown: Tantalite
Unknown: Siderite
Unknown: Quartz
Unknown: Pollucite
Unknown: Orthoclase
Unknown: Oligoclase
Unknown: Muscovite
Unknown: Zircon
Unknown: Apatite
Unknown: Anorthoclase
Unknown: Alabandite
Unknown: Microcline
Unknown: Lepidolite
Unknown: Columbite
Unknown: Cassiterite
Unknown: Biotite
Unknown: Beryl
Unknown: Monazite

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Comments

Comment (Production): RECOVERIES HAVE BEEN ROUNDED. RECOVERIES ARE ACTUALLY 71.8% FOR TIN, 94.5% FOR TANTALUM, AND 77.9% FOR NIOBIUM. NIOBIUM.

Comment (Economic Factors): THE ORIGIN POINT LATITUDE AND LONGITUDE IS THAT OF THE ETTA MINE ITSELF.

Comment (Reserve-Resource): THERE ARE 8 ADDITIONAL DUMPS THAT HAVE NOT BEEN EVALUATED BY THE PACER CORP. RESERVES OF TANTALUM, COLUMBIUM, AND TIN ARE LIKELY TO INCREASE AFTER EVALUATION OF THESE ADDITIONAL DUMPS. SEE APPENDIX B-2 OF REPORT. THE ABOVE RESERVE DATA WAS PROVIDED BY PACER CORP. (SEE APPENDIX B-2). ALTHOUGH THE FIGURE IS BASED ON MINIMAL EXPLORATION, AND CONSEQUENTLY IN A LOWER PROBABILITY CATEGORY, THE EVALUATOR BELIEVES MOST OF THE RESERVE WILL BE CONFIRMED.

Comment (Geology): ORE IS TO BE TAKEN FROM 8 DIFFERENT DUMPS AND FROM THE EXISTING HIGHWALL OF THE OLD ETTA MINE. CONSEQUENTLY, OREBODY DIMENSIONS CANNOT BE GIVEN. ALL ORE IN THE DUMPS IS FROM PREVIOUS MINING OF PEGMATITES.

Comment (Reserve-Resource): RESOURCES IN RECOVERABLE MT PROPOSED MINING WILL REWORK EXISTING DUMPS AND OPEN PIT MINE

Comment (Production): PRODUCT A IS THE TANTALUM-COLUMBIUM CONCENTRATE; PRODUCT B IS A TIN CONCENTRATE; AND, PRODUCT C IS GRAVEL WHICH IS THE TAILS FROM MILLING. PRODUCT C, GRAVEL, COMES FROM THE COARSE TAILS (SEE APPENDIX B-4 OF BACK-UP DATA).

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References

Reference (Workings): DAKOTA, MARCH 20, 1937, P. 43-46.

Reference (Workings): SOUTH DAKOTA STATE PLANNING BOARD, PEGMATITE MINING IN SOUTH

Reference (Reserve-Resource): WITH EVALUATOR 7/16/82 AND 7/21/82.

Reference (Reserve-Resource): CULLUM, R. PRESIDENT OF PACER CORP., PHONE CONVERSATIONS

Reference (Production): WITH EVALUATOR 7/26/82.

Reference (Production): SEHDER, J. SUPERINTENDENT OF PACER CORP., PHONE CONVERSATION

Reference (Production): DEC. 1958, P. 39-49.

Reference (Production): PROJECT AT CROWSNEST, WESTERN MINER, VOL. 41, NO. 12,

Reference (Production): HOWE, A.C.A. CANADA'S FIRST TANTALUM PRODUCTION KAISER COAL

Reference (Production): CONCENTRATOR-RECENT DEVELOPMENTS, CIM BULLETIN, SEPT.

Reference (Geology): 1929, P. 218-260.

Reference (Geology): HILLS, SOUTH DAKOTA SCHOOL OF MINES, BULL. NO. 16, MAY,

Reference (Geology): CONNOLLY, J.P., C.C. O'HARA. THE MINERAL WEALTH OF THE BLACK

Reference (Production): QUARTERS, 5/26/82.

Reference (Production): DALEY, M. NOTES OBTAINED DURING VISIT TO PACER CORP. HEAD-

Reference (Production): 1979, P. 103-108.

Reference (Production): BURT, R.O. TANTALUM MINING CORPORATION'S GRAVITY

Reference (Production): 1962, P. 130-131, 252, 280-281, AND 306-307.

Reference (Production): DENVER EQUIPMENT COMPANY, MINERAL PROCESSING FLOWSHEETS

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