Black and White Mine

Site Name

Primary: Black and White Mine
Secondary: Three Friends Claim

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Commodity

Primary: Manganese
Primary: Copper
Tertiary: Zinc
Tertiary: Magnesite
Tertiary: Cobalt
Tertiary: Nickel
Tertiary: Silver

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Location

State: Washington
County: Mason

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Land Status

Land ownership: National Park
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.
Administrative Organization: In Olympic National Park

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Holdings

Not available

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Workings

Type: Surface/Underground

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Ownership

Owner Name: Olympic Mines, Inc.
Years: 1943 -

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Production

Year: 1918
Material type: ORE MN
Description: Ap_Grade: ^About 25% Mn (Test Shipment)
Year: 1915
Material type: ORE CU
Description: Ap_Grade: ^7.85% Cu, 0.40 Oz/Ton Ag, 3.2% Fe

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Olympic Mountains

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Mineral Deposit Model

Model Name: Volcanogenic Mn, Olympic Peninsula

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Orebody

Form: LENSES (PINCH AND SWELL)

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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

Analytical Data: COMPOSITE SAMPLE OF 125 TONS CONTAINED 5.63% CU, 0.12% NI AND CO, 19.72% MNO, 7.44% FE2O3, 3.84% CAO, 5.15% H2O, 57.2% INSOL., TR ZN AND MG.

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Materials

Ore: Rhodochrosite
Ore: Rhodonite
Ore: Malachite
Ore: Chalcocite
Ore: Cuprite
Ore: Copper
Ore: Bementite
Gangue: Jasper

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Comments

Comment (Location): UNSURVEYED. BY BLACK AND WHITE LAKES ON DIVIDE EAST OF NORTH FORK SKOKOMISH RIVER. ON WEST SLOPE OF MOUNT GLADYS.

Comment (Development): ORIGINALLY STAKED AS A COPPER CLAIM IN 1907. MN WAS RECOGNIZED IN 1918

Comment (Deposit): 3 LENSES OF MN SILICATES FOUND ALONG ALTERED BASALT-SANDSTONE CONTACT. ORE EXPOSED OVER 1,080 SQUARE FOOT AREA. ATTITUDE GIVEN IS OF HOST ROCK. MINERAL ASSEMBLAGE AND ELEMENT ANALYSES MAY SUGGEST TWO SEPARATE DEPOSIT TYPES, ONE OF WHICH IS VOLCANOGENIC MN AND THE OTHER OF WHICH IS UNKNOWN, BUT POSSIBLY CYPRUS-TYPE MASSIVE SULFIDE.

Comment (Workings): ADIT, SHAFT, SEVERAL CUTS AND PITS

Comment (Geology): HOST ROCK UNITS ARE UNNAMED. MAIN COUNTRY ROCKS IN AREA ARE ALTERED BASALTS AND MARINE SEDIMENTARY ROCKS. NO RED LIMESTONE WAS SEEN NEAR ORE, BUT IT IS PRESENT IN SAME STRATIGRAPHIC HORIZON A SHORT DISTANCE TO THE NORTHEAST.

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References

Reference (Production): MAGILL, 1960

Reference (Deposit): DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 158.

Reference (Deposit): GREEN, S.H., 1945, MANGANESE DEPOSITS OF THE OLYMPIC PENINSULA, WASHINGTON: WASHINGTON DIVISION OF MINES AND MINING REPORT OF INVESTIGATIONS 7, P. 40-41.

Reference (Deposit): MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OLYMPIC PENINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5530, P. 62-64, 77.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 61-62.

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Washington Gold

"Where to Find Gold in Washington" 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 Washington.