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New Light Mine, Slate Creek Mining District, Whatcom County, Washington, USAi
| Regional Level Types | |
|---|---|
| New Light Mine | Mine |
| Slate Creek Mining District | Mining District |
| Whatcom County | County |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
48° 45' 40'' North , 120° 43' 31'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Eureka Mine; Bonita Mine; Slate Creek Mine; Monica Mine; Western Gold Mine
A gold mine above Barron. It worked a fracture zone in limey and graphitic argillite that contains interlacing quartz veinlets, graphitic shear zones, and breccia zones cemented by quartz and sulfides. Development consisted of around 7200' of underground of workings on six levels. It produced 60,000 tons of ore in the early 1900s, several tons of high grade ore from 1940-1942, 24 tons of concentrates in 1947, 300 tons of ore in 1949, 300 tons in 1963, and 7 tons of ore in 1978. The total production is estimated to be about $1,250,000.
Note: The occurrence of tellurium here is strange. Sylvanite was reported by early operators of the mine, but this was not found in later studies of the ore. The USBM however did find 3.5 ppm of Te in some of the concentrates
Structure: Jur-Cret Fold And Thrust Belt Intruded By Lcret-Etert Magmatic Arc Plutons Masses Of Quartz-Carbonate Cemented Breccia.
Tectonics: Cascade Volcanic Arc
Commodity: Early-day operators report that sylvanite and argentite were in the ore. Platinum and nickel reported from smelter assays. 70% of gold is native gold and is very fine grained
Deposit: Gold-bearing quartz cements breccia. Free gold found in breccia that contains galena. Pyrite is common but pyritiferous breccia without galena contains only very lo W gold values.
Deposit type: Low-sulfide Au-quartz vein
Development: This was among the first claims in the district. Western gold mines was exploring property in 1992
Geology: Gold-quartz veins to 5 ft wide are contained in well developed shear zones. Harts pass formation was deposited in turbidity currents
Rock formation(s): Harts Pass Group, Harts Pass Formation
Ore(s): In Breccia That Contains Visible Galena, Well Developed Shear Zones
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
12 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:
| ⓘ Acanthite Formula: Ag2S |
| ⓘ Calaverite Formula: AuTe2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Native Gold Formula: Au |
| ⓘ Native Platinum Formula: Pt |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS References: |
| ⓘ Sylvanite Formula: AgAuTe4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| ⓘ | Native Platinum | 1.AF.10 | Pt |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Sylvanite | 2.EA.05 | AgAuTe4 |
| ⓘ | Calaverite | 2.EA.10 | AuTe2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Sylvanite | AgAuTe4 |
| Te | Tellurium | |
| Te | ⓘ Calaverite | AuTe2 |
| Te | ⓘ Sylvanite | AgAuTe4 |
| Pt | Platinum | |
| Pt | ⓘ Native Platinum | Pt |
| Au | Gold | |
| Au | ⓘ Calaverite | AuTe2 |
| Au | ⓘ Native Gold | Au |
| Au | ⓘ Sylvanite | AgAuTe4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10042391 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Cascade RangeMountain Range
North America PlateTectonic Plate
- Franciscan DomainDomain
- MethowAccretionary Complex
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New Light Mine, Slate Creek Mining District, Whatcom County, Washington, USA