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Horseshoe Mountain, Snoqualmie Mining District, King County, Washington, USAi
| Regional Level Types | |
|---|---|
| Horseshoe Mountain | Mountain |
| Snoqualmie Mining District | Mining District |
| King County | County (Historical) |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 27' 30'' North , 121° 38' 6'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Tanner | 1,018 (2011) | 8.5km |
| Riverbend | 2,132 (2011) | 8.7km |
| Wilderness Rim | 1,523 (2017) | 10.1km |
| North Bend | 6,679 (2017) | 12.1km |
| Snoqualmie | 13,169 (2017) | 16.3km |
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 |
|---|---|---|
| Bellevue Rock Club, Inc. | Bellevue, Washington | 46km |
| Cascade Mineralogical Society Inc | Kent, Washington | 46km |
| North American Miners Association | Kent, Washington | 46km |
| East KingCo Rock Club | Kirkland, Washington | 50km |
On Horseshoe Mountain arfvedsonite occurs as bladed crystals in pockets in anorthosite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arfvedsonite Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 Habit: blocky to bladed crystals to 1.5" Description: crystals in mairolitic cavities and as a rockforming mineral |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Arfvedsonite | 9.DE.25 | [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| O | Oxygen | |
| O | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Na | Sodium | |
| Na | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Si | Silicon | |
| Si | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
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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