Hermada Antimony Mine

The Hermada Antimony Mine is a antimony mine located in Elmore county, Idaho at an elevation of 5,801 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

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Site Name

Primary: Hermada Antimony Mine

Commodity

Primary: Antimony

Location

State: Idaho
County: Elmore
District: Black Warrior Basin District

Land Status

Land ownership: National Forest
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: Boise National Forest

Holdings

Type: Patented
Type: Located Claim

Workings

Not available

Ownership

Owner Name: Hermada Mining Co.

Production

Year: 1950
Time Period: 1947-1950
Material type: ORE
Description: Cp_Grade: ^12.74% Sb

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Surface-Underground
Year First Production: 1947
Discovery Year: 1947
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Sawtooth Mountains

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Form: IRREGULAR

Structure

Type: L
Description: Nnw Hermada Fault And Fissure Zone

Alterations

Alteration Type: L
Alteration Text: Sericitization, Silicification, Pyritization, Calcification, Chloritization, Hydrothermal Alteration

Rocks

Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic

Analytical Data

Not available

Materials

Ore: Stibnite
Ore: Kermesite
Ore: Stibiconite
Ore: Antimony
Ore: Cervantite
Gangue: Sericite
Gangue: Limonite
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Development): Other Claims Belonging To Hermada Mining Co.: Hermada Nos. 1 - 49, White Knob Nos. 19 - 30, Diana Lee, Carol Lee, Yellow Tom. ; Econ.Com: Low Lead And Arsenic Content Makes The Concentrate Desirable For The Chemical Industry.

Comment (Deposit): Veins Trend N 15 Deg W - N 10 Deg E

References

Reference (Deposit): Popoff, C. C., 1953, Hermada Antimony Deposit, Elmore County, Idaho: USBM Rept. Inv. 4950, 21 P.

Reference (Deposit): Idaho Dept. Of Labor And Industrial Services, July 1974 - June 1975, First Annual Rept. Addendum, 95 P.

Reference (Deposit): Hubbard, C.R., 1955 , A Survey Of The Mineral Resources Of Idaho: Idaho Bureau Of Mines And Geology Pamphlet 105 , 56 P.

Reference (Deposit): 1948 Geolmap USBM Rept. Inv. 4950

Reference (Deposit): 1955 Compile Idaho Bureau Of Mines And Geology Pamphlet 105

Reference (Deposit): 1975 Compile Idaho Dept. Labor And Ind. Serv., 1st Ann. Rept. Addendum

Reference (Production): Popoff, C. C., 1953, USBM Rept. Inv. 4950

Idaho Gold

"Where to Find Gold in Idaho" 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 Idaho. Read more: Where to Find Gold in Idaho.