Great Republic Mine, Miller River Mining District, King County, Washington, USAi
| Regional Level Types | |
|---|---|
| Great Republic Mine | Mine |
| Miller River Mining District | Mining District |
| King County | County (Historical) |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 41' 53'' North , 121° 24' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Happy Thought Mine
A small gold-silver-antimony mine on the west side of the Miller River. The ore occurred along a shallowly dipping fault in andesite. It was operated by the Great Republic Gold Mining Company just after the turn of the century. It was developed by two interconnected adits with around 1000' of workings. A small tram and stamp mill were built to process the little production it had.
Tectonics: The Great Republic Mine Is In A Volcanic Member Of The Swauk Formation, Which Is Early Eocene (52 M.Y.) And Pre-Cascade Magmatic Arc (Tabor And Others, 1982, Geol. Map, P. 13).
Deposit: Mineralization occurs in the silver pass volcanic member of the swauk formation. The volcanic member consists of rhyolitic to andesitic breccia and feldspar porphyry (tabor and others, 1982, p. 13). ; info.src : 1 pub lit
Development: ECON.COM: PRODUCED 1938-1941 (HUNTTING, 1956, P. 17).
Ore(s): The Best Mineralization Occurs Along A Gently Dipping Fault In Andesite (Purdy, 1951, P. 75). Stibnite And Pyrite Are Present In Quartz, Calcite, And Andesite Gangue (Livingston, 1971, P. 157).
Tectonics: The Great Republic Mine Is In A Volcanic Member Of The Swauk Formation, Which Is Early Eocene (52 M.Y.) And Pre-Cascade Magmatic Arc (Tabor And Others, 1982, Geol. Map, P. 13).
Deposit: Mineralization occurs in the silver pass volcanic member of the swauk formation. The volcanic member consists of rhyolitic to andesitic breccia and feldspar porphyry (tabor and others, 1982, p. 13). ; info.src : 1 pub lit
Development: ECON.COM: PRODUCED 1938-1941 (HUNTTING, 1956, P. 17).
Ore(s): The Best Mineralization Occurs Along A Gently Dipping Fault In Andesite (Purdy, 1951, P. 75). Stibnite And Pyrite Are Present In Quartz, Calcite, And Andesite Gangue (Livingston, 1971, P. 157).
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
9 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cervantite Formula: Sb3+Sb5+O4 References: |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Senarmontite Formula: Sb2O3 References: |
| ⓘ Stibnite Formula: Sb2S3 |
| ⓘ Valentinite Formula: Sb2O3 References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Senarmontite | 4.CB.50 | Sb2O3 |
| ⓘ | Valentinite | 4.CB.55 | Sb2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cervantite | 4.DE.30 | Sb3+Sb5+O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cervantite | Sb3+Sb5+O4 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Senarmontite | Sb2O3 |
| O | ⓘ Valentinite | Sb2O3 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stibnite | Sb2S3 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Sb | Antimony | |
| Sb | ⓘ Cervantite | Sb3+Sb5+O4 |
| Sb | ⓘ Senarmontite | Sb2O3 |
| Sb | ⓘ Stibnite | Sb2S3 |
| Sb | ⓘ Valentinite | Sb2O3 |
Other Databases
| Link to USGS MRDS: | 10055928 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Cascade RangeMountain Range
North America PlateTectonic Plate
- Cascade ArcVolcanic Arc
- Franciscan DomainDomain
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Great Republic Mine, Miller River Mining District, King County, Washington, USA