Hines and McLaughlin; Royal Group Prospect, Nome Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Hines and McLaughlin; Royal Group Prospect | Prospect |
| Nome Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 35' 17'' North , 165° 20' 27'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 10.2km |
Location: The Hines and McLaughlin (Royal Group) claims are at an elevation of about 700 feet on the southwest flank of King Mountain. The location is approximately locality 5 of Cathcart (1922, p. 235, figure 18). The map location is in the SE1/4 section 30, T. 10 S., R. 33 W., Kateel River Meridian. The location is approximate, but probably accurate to within a quarter of a mile.
Geology: The Hines and McLaughlin prospect was developed by six shafts ranging from 20 to 56 feet in depth (Cathcart, 1922, p. 236). The shafts were sunk in bedrock composed of alternating layers of marble and mineralized schist. None of the workings were open when Cathcart visited the area. He reported that the schist was mostly decomposed and stained yellow--possibly by jarosite that replaced pyrite. Little quartz was present. The material did not pan free gold, but the owners reported assays of 3 to 24 dollars in gold; they also reported the presence of platinum, which Cathcart doubted.
Workings: Five claims on King Mountain above Dexter were explored by shallow shafts that were caved at the time of Cathcart's visit (Cathcart, 1922). The claims, including the Royal Group on King Mountain, were reported by Mertie (1918), but he did not visit them in 1916. Gold was reported by assay, but decomposed schist did not pan free gold. The validity of the prospect is doubtful.
Age: Probably about mid-Cretaceous, the age of other lode gold deposits in the Nome district.
Alteration: Sulfidization of schist.
Commodities (Major) - Au; (Minor) - Pt (?)
Development Status: None
Deposit Model: Low-sulfide replacement lode is schist and marble.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Gold Formula: Au |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | Oxygen | |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | Iron | |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | NM244 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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