Poison Creek, Lewis River, Skamania County, Washington, USAi
| Regional Level Types | |
|---|---|
| Poison Creek | Creek |
| Lewis River | River |
| Skamania County | County |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
46° 11' 46'' North , 121° 43' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Trout Lake | 557 (2011) | 27.0km |
| Packwood | 342 (2011) | 45.8km |
| Carson | 2,279 (2011) | 52.8km |
| White Salmon | 2,343 (2017) | 55.4km |
| Hood River | 7,624 (2017) | 56.9km |
Mindat Locality ID:
194973
Long-form identifier:
mindat:1:2:194973:8
GUID (UUID V4):
b2446bc3-0f45-486a-9798-d239f93737cb
Exceptional specimens of stilbite are found in Miocene andesite, dated 25.1 to 26.5 m.y.o., in breccia filled lava tubes exposed along Forest Service road 88 at the mouth of Poison Creek with the Lewis River, Skamania County, Washington. Specimens were first found in 1961 by V. Camp when the road as first constructed. The area was extensively worked in 1980-1981 by Carl Harris and again another 8 feet of breccia in the tube was exposed in 1983 by Randy Becker. A third tube was found by Ray Lasmanis in 1992. Each tube contained stacks of volcanic breccia covered with tiny heulandite/mordenite crystals on which large stilbite crystals were found. Mud filled the remainder of the tube.
Rudy Tschernich
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 References: |
| ⓘ 'Heulandite Subgroup' Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O References: |
| ⓘ Mordenite Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Mordenite | 9.GD.35 | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Unclassified | |||
| ⓘ | 'Heulandite Subgroup' | - | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| H | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| O | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Na | Sodium | |
| Na | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Na | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Al | Aluminium | |
| Al | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Al | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | Silicon | |
| Si | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Si | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| K | Potassium | |
| K | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| K | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Ca | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
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References
