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Coplay Lake Breccias, Carbon River Mining District, Pierce County, Washington, USAi
| Regional Level Types | |
|---|---|
| Coplay Lake Breccias | Outcrop |
| Carbon River Mining District | Mining District |
| Pierce County | County |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
47° 1' 28'' North , 121° 49' 58'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
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 |
|---|---|---|
| Puyallup Valley Gem & Mineral Club | Puyallup, Washington | 39km |
| Cascade Mineralogical Society Inc | Kent, Washington | 50km |
| North American Miners Association | Kent, Washington | 50km |
Other/historical names associated with this locality:
Cayada Mountain Breccia
Two noted mineralized zones in Carbon River Stock granodiorite produced quartz crystals near Coplay Lake on Cayada Mountain. The main locality produced large milky quartz crystals associated with black tourmaline, pyrite, and sparse sphalerite. The largest recorded crystal from the main locality measured over 9 inches tall.
A second exposure to the east of the main locality, named ''East Cliff'' produced smaller quartz crystals with occasional inclusions of an unidentified mineral suspected to be stibnite. An unknown greenish mineral also occurs with the quartz crystals. Many empty casts of previous crystals in massive quartz were likely arsenopyrites.
A second exposure to the east of the main locality, named ''East Cliff'' produced smaller quartz crystals with occasional inclusions of an unidentified mineral suspected to be stibnite. An unknown greenish mineral also occurs with the quartz crystals. Many empty casts of previous crystals in massive quartz were likely arsenopyrites.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS References: Aidan Cerenzie CollectionIdentified by Aidan Cerenzie: Visual Identification |
| ⓘ Pyrite Formula: FeS2 References: Mainly forms as masses and streaks Identified by Aidan Cerenzie: Visual Identification |
| ⓘ Quartz Formula: SiO2 References: Bart Cannon CollectionIdentified by Gabe Cangelosi: Visual Identification Aidan Cerenzie CollectionIdentified by Aidan Cerenzie: Visual Identification |
| ⓘ Quartz var. Milky Quartz Formula: SiO2 References: Aidan Cerenzie CollectionIdentified by Aidan Cerenzie: Visual Identification |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) References: Bart Cannon CollectionIdentified by Gabe Cangelosi: Visual Identification |
| ⓘ Sphalerite Formula: ZnS References: Scattered disseminated massesIdentified by Aidan Cerenzie: Visual Identification |
| ⓘ Stibnite ? Formula: Sb2S3 References: Aidan Cerenzie CollectionIdentified by Aidan Cerenzie: Visual Identification |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Stibnite ? | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Milky Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Quartz var. Milky Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | Aluminium | |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz var. Milky Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Stibnite | Sb2S3 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
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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Coplay Lake Breccias, Carbon River Mining District, Pierce County, Washington, USA