| Locality type: | Valley |
| Classification |
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| Species: | Siderite |
| Formula: | FeCO3 |
| Comments: | Usually occupying the central portions of geodes. At times enclosed in quartz forming "sagenite." |
| Habit: | Spherical groups (spherosiderite), columnar masses of stacked plates, radiating rods, or jackstraw arrangements |
| Colour: | brown to amber |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Calcite | 5 |
| Quartz | 3 |
| Hisingerite | 3 |
| Goethite | 3 |
| Andesite | 1 |
| Data |
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| Mineral Data: | Click here to view Siderite data |
| Locality Data: | Click here to view Walker Valley, Skagit County, Washington, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 45735 |
| Long-form Identifier: | 1:3:45735:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Siderite |
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| 31.6km (19.7 miles) | ⓘBlanchard Hill, Skagit County, Washington, USA |
| 41.4km (25.7 miles) | ⓘGranite Falls Nickel Prospect, Granite Falls Mining District, Snohomish County, Washington, USA |
| 63.5km (39.5 miles) | ⓘSunrise Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA |
| 64.6km (40.2 miles) | ⓘChurch Mountain Iron Deposit, Mount Baker Mining District, Whatcom County, Washington, USA |
| 64.7km (40.2 miles) | ⓘSt. Theresa Prospect, Sultan Mining District, Snohomish County, Washington, USA |
| 71.4km (44.4 miles) | ⓘSilver Tip Mine, Mount Baker Mining District, Whatcom County, Washington, USA |
| 81.8km (50.8 miles) | ⓘCanyon Creek Quarry, King County, Washington, USA |
| 85.1km (52.9 miles) | ⓘBlack Warrior Mine, Horseshoe Basin, Stehekin Mining District, Chelan County, Washington, USA |
| 89.9km (55.9 miles) | ⓘGlacier Peak Mine, Glacier Peak Mining District, Snohomish County, Washington, USA |
| 97.4km (60.5 miles) | ⓘDevils Canyon Prospect, Buena Vista Mining District, King County, Washington, USA |
| References |
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Walker Valley, Skagit County, Washington, USA