Harmony Mine, McDevitt Mining District, Lemhi County, Idaho, USAi
| Regional Level Types | |
|---|---|
| Harmony Mine | Mine (Abandoned) |
| McDevitt Mining District | Mining District |
| Lemhi County | County |
| Idaho | State |
| USA | Country |
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Latitude & Longitude (WGS84):
45° 0' 52'' North , 113° 49' 36'' West
Latitude & Longitude (decimal):
Type:
Mine (Abandoned) - last checked 2024
Köppen climate type:
Mindat Locality ID:
137876
Long-form identifier:
mindat:1:2:137876:7
GUID (UUID V4):
e216b811-be69-47a8-a984-593c9d563091
Other/historical names associated with this locality:
Income; Continental; Contention; Anderson; Leap Year
The Harmony was a moderate producer of copper south of Salmon. It was one of the highest (elevation) mines in the area, with the main workings being at around 8200 ft (ca. 2,499 m). The ore was along mostly parallel shears in quartzite.
When the mine was first discovered is unknown, but the first recorded production was in 1916. Small shipments were made until 1920 when a mill was built and production increased. It closed briefly in 1921 then reopened in 1922 and produced considerable concentrates until 1924. Most of the work for the next few years was development, but in 1928 the mine resumed production and ran until 1930. During that time a diesel generator was installed at Baker and 8 miles (ca. 13 km) of electric line were run to the mine. In 1931 a small amount of ore was briefly produced, but the mine was soon scrapped out. The final recorded production from the mine was 47,000 tons of ore containing 1,815,000 lbs (ca 823 t) of copper.
Commodities (Major) — Copper; (Minor) — Gold, Silver
Development Status: Past Producer
Host Rock Unit: Yellowjacket
Structure: E Flank, Lemhi Rg Syncline
Host Rock: Quartzite
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
8 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' |
| ⓘ Cuprite Formula: Cu2O |
| ⓘ Gold Formula: Au |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 References: |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Silver Formula: Ag |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Silver | 1.AA.05 | Ag |
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Ag | Silver | |
| Ag | ⓘ Silver | Ag |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10105631 |
|---|
Documents
| Title (click to view) | Year | Author | |
|---|---|---|---|
 | History of the Harmony Mine, Lemhi County, Idaho | 1997 | Victoria E. Mitchell |
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Falls DomainDomain
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References
Harmony Mine, McDevitt Mining District, Lemhi County, Idaho, USA