Scout Patrol Peak, Hansen Creek area, Snoqualmie Mining District, King County, Washington, USAi
| Regional Level Types | |
|---|---|
| Scout Patrol Peak | Mountain (Active) |
| Hansen Creek area | Creek |
| Snoqualmie Mining District | Mining District |
| King County | County (Historical) |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 21' 26'' North , 121° 31' 16'' West
Latitude & Longitude (decimal):
Type:
Mountain (Active) - last checked 2026
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Snoqualmie Pass | 311 (2011) | 9.9km |
| Riverbend | 2,132 (2011) | 21.1km |
| Wilderness Rim | 1,523 (2017) | 21.1km |
| Tanner | 1,018 (2011) | 21.4km |
| North Bend | 6,679 (2017) | 25.2km |
Other/historical names associated with this locality:
Hansen Creek roadcuts, Hansen Creek micromineral locality, Butterfly locality, Upper Hansen Creek
After FS road 5510 turns to the west, crosses the drainage creek from Scout Lake, and begins to traverse the northern flank of Scout Patrol Peak, a micromineral locality occurs at 3200' elevation on a series of roadcuts with vistas of the entire Hansen Creek drainage. Optical needle quartz crystals to 1cm are abundant in vugs to 15cm. Pyrite and fluorapatite are occasionally found in the open-air vugs. The chlorite, muscovite, and titanium minerals must be etched out of calcite, mostly found at the more western of the two cuts.
Higher on Scout Patrol Peak, in its northeastern bowl at 4000' elevation, is the "Butterfly" locality - here, quartz crystals up to 12cm occur in a highly altered breccia. All other minerals occur as inclusions in quartz. This locality is known for producing Japan-law twins and quartz crystals with inclusions of chlorite (green balls) and pyrite (glittery pyritohedra).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Actinolite-Tremolite Series' References: |
| ⓘ Albite Formula: Na(AlSi3O8) Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Anatase Formula: TiO2 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Brookite Formula: TiO2 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Calcite Formula: CaCO3 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Chalcopyrite Formula: CuFeS2 Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Goethite Formula: Fe3+O(OH) Habit: pseudomorphous after pyrite References: |
| ⓘ Orthoclase Formula: K(AlSi3O8) Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Piemontite Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Pyrite Formula: FeS2 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Rutile Formula: TiO2 Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Description: found in altered Snoqualmie granodiorite References: |
| ⓘ Titanite Formula: CaTi(SiO4)O Description: Minerals most often found in calcite filled vugs requiring removal of calcite to view crystals. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| ⓘ | Brookite | 4.DD.10 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Piemontite | 9.BG.05a | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Actinolite-Tremolite Series' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Actinolite-Tremolite Series | |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Brookite | TiO2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Actinolite-Tremolite Series | |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Actinolite-Tremolite Series | |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Actinolite-Tremolite Series | |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Actinolite-Tremolite Series | |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Brookite | TiO2 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Mn | Manganese | |
| Mn | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Actinolite-Tremolite Series | |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
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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Scout Patrol Peak, Hansen Creek area, Snoqualmie Mining District, King County, Washington, USA