Log In
Florence Rae Mine, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USAi
| Regional Level Types | |
|---|---|
| Florence Rae Mine | Mine |
| North Fork of the Sultan River | Mountain |
| Sultan Mining District | Mining District |
| Snohomish County | County |
| Washington | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
47° 58' 14'' North , 121° 29' 30'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Darrington Rock & Gem Club | Darrington, Washington | 33km |
Other/historical names associated with this locality:
Rudebeck Mine; Rudebeck-Florence Rae Mine; Margaret Moshier Mine; Copper Knob Mine
The Florence Rae was a small copper mine on the North Fork of the Sultan River and comprised some 14 unpatented claims.
The mine has a long, mostly unproductive history. Between 1918-19 and 1938-41 the mine is credited with 600 tons of production averaging 12% copper. The workings consisted of several adits, the largest of which being the Moshier which was just over 1,000' long. Based off of the present condition of the workings, it appears that most of the production came from a single pod near the surface, and the rest of development was in a failed search for more ore.
Above the Moshier adit in the cliffs was the Copper Knob pit which mined another small high grade pod. A small tramway connected the Copper Knob and the Moshier adit. The Moshier adit was connected by a tramway down to the Rudebeck cabin at the creek. There was at one time plans to make a rail line up the river to service the mine, but this never happened.
Tectonics: Cascade Volcanic Arc
Deposit: Nature of deposit is unclear from descriptions. It appears As if it may represent two distinct episodes of mineralization, the first a magmatic segregation and the second a hydrothermal overprint. There are 4 main vein systems and lenses of chromite to 4 x 5 ft. Attitude is of one mineralized shear zone
Deposit type: Dunitic Ni-Cu
Geology: Melange is part of a series of accreted terranes
Rock formation(s): Eastern Melange Belt;Eastern Melange Belt;Eastern Melange Belt;Index Batholith
The mine has a long, mostly unproductive history. Between 1918-19 and 1938-41 the mine is credited with 600 tons of production averaging 12% copper. The workings consisted of several adits, the largest of which being the Moshier which was just over 1,000' long. Based off of the present condition of the workings, it appears that most of the production came from a single pod near the surface, and the rest of development was in a failed search for more ore.
Above the Moshier adit in the cliffs was the Copper Knob pit which mined another small high grade pod. A small tramway connected the Copper Knob and the Moshier adit. The Moshier adit was connected by a tramway down to the Rudebeck cabin at the creek. There was at one time plans to make a rail line up the river to service the mine, but this never happened.
Tectonics: Cascade Volcanic Arc
Deposit: Nature of deposit is unclear from descriptions. It appears As if it may represent two distinct episodes of mineralization, the first a magmatic segregation and the second a hydrothermal overprint. There are 4 main vein systems and lenses of chromite to 4 x 5 ft. Attitude is of one mineralized shear zone
Deposit type: Dunitic Ni-Cu
Geology: Melange is part of a series of accreted terranes
Rock formation(s): Eastern Melange Belt;Eastern Melange Belt;Eastern Melange Belt;Index Batholith
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
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Amphibole Supergroup' Formula: AB2C5(T8O22)W2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Chromite Formula: Fe2+Cr3+2O4 |
| ⓘ Galena Formula: PbS |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Pentlandite Formula: (NixFey)Σ9S8 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Scheelite Formula: Ca(WO4) |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pentlandite | (NixFey)Σ9S8 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Ni | Nickel | |
| Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10048632 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Cascade RangeMountain Range
North America PlateTectonic Plate
- Cascade ArcVolcanic Arc
- Franciscan DomainDomain
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Florence Rae Mine, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA