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Rock Island Dam, Douglas County, Washington, USAi
| Regional Level Types | |
|---|---|
| Rock Island Dam | Dam |
| Douglas County | County |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 20' 36'' North , 120° 5' 22'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Rock Island | 804 (2017) | 5.5km |
| South Wenatchee | 1,553 (2011) | 15.9km |
| East Wenatchee Bench | 8,856 (2006) | 17.1km |
| East Wenatchee | 13,659 (2017) | 17.3km |
| Wenatchee | 33,636 (2017) | 18.8km |
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 |
|---|---|---|
| Ginkgo Mineral Society | Wenatchee, Washington | 19km |
The Rock Island Dam was constructed across the Columbia River in 1929-1933. During deepening of the Columbia River channel in the 1950s, vesicular basalt cobbles and boulders, containing zeolites, were dredged from the river and placed on the northeastern bank of the Columbia River at Rock Island Dam, in Douglas County.
In the late 1950s, zeolite and pyrite specimens found along the dike were sent to Kamb and Oke for identification. The new zeolite paulingite was described in 1960 from this rock. A search of the rock in the cliffs and the river upstream from the dam has not revealed any zeolites.
Additional basalt, containing empty vesicles or opal, was quarried from the cliffs and placed on the river dike covering the zeolite-bearing basalt that had been dredged from the river.
In the late 1970s, a second powerhouse was built on the west side of the dam. The river was blocked off and core drilling of the horizontal rock flows was made. Vesicles that were found were either empty or contained calcite, opal, or iron oxide (Lyman, 1977). No zeolites were found.
Zeolites can still be found low on the eastern dike right near the water although their source is unknown.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Chabazite' |
| ⓘ Clinoptilolite-Ca Formula: Ca3(Si30Al6)O72 · 20H2O |
| ⓘ Erionite-K Formula: (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ 'K Feldspar' |
| ⓘ Offretite Formula: KCaMg(Si13Al5)O36 · 15H2O |
| ⓘ Opal Formula: SiO2 · nH2O |
| ✪ Paulingite-K (TL) Formula: (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O Type Locality: |
| ⓘ Phillipsite-K Formula: K6(Si10Al6)O32 · 12H2O |
| ⓘ Pyrite Formula: FeS2 Habit: filiform |
| ⓘ 'Smectite Group' Formula: A0.3D2-3[T4O10]Z2 · nH2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Phillipsite-K | 9.GC.10 | K6(Si10Al6)O32 · 12H2O |
| ⓘ | Paulingite-K (TL) | 9.GC.35 | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| ⓘ | Erionite-K | 9.GD.20 | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| ⓘ | Offretite | 9.GD.25 | KCaMg(Si13Al5)O36 · 15H2O |
| ⓘ | Clinoptilolite-Ca | 9.GE.05 | Ca3(Si30Al6)O72 · 20H2O |
| Unclassified | |||
| ⓘ | 'Chabazite' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Smectite Group' | - | A0.3D2-3[T4O10]Z2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| H | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| H | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| H | ⓘ Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| H | ⓘ Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| O | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| O | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| O | ⓘ Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| O | ⓘ Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
| Na | Sodium | |
| Na | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| Na | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| Mg | Magnesium | |
| Mg | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| Al | Aluminium | |
| Al | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| Al | ⓘ Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| Al | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| Al | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| Al | ⓘ Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| Si | Silicon | |
| Si | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| Si | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| Si | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| Si | ⓘ Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| S | Sulfur | |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| K | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| K | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| K | ⓘ Phillipsite-K | K6(Si10Al6)O32 · 12H2O |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| Ca | ⓘ Clinoptilolite-Ca | Ca3(Si30Al6)O72 · 20H2O |
| Ca | ⓘ Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| Ca | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ba | Barium | |
| Ba | ⓘ Paulingite-K | (K2,Ca,Na2,Ba)5[Al10Si35O90] · 45H2O |
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Cascade RangeMountain Range
North America PlateTectonic Plate
- Columbia Basin and RangeWide Rift
- Franciscan DomainDomain
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References
Kamb, W. B., Oke, W. C. (1960) Paulingite, a new zeolite, in association with erionite and filiform pyrite. American Mineralogist, 45 (1-2) 79-91
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.pages 87, 129, 130, 133, 134
Wise, William S., Tschernich, R. W. (1976) The chemical compositions and origin of the zeolites offretite, erionite, and levyne. American Mineralogist, 61 (9-10) 853-863
Tschernich, Rudy D., Wise, W. S. (1982) Paulingite: variations in composition. American Mineralogist, 67. 799-803
Tschernich, Rudy (1991) Zeolites of Washington State. Rocks & Minerals, 66 (4) 302-309 doi:10.1080/00357529.1991.11761634
Rock Island Dam, Douglas County, Washington, USA