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Silver Star Prospect, Silver Star Mountain, Clark County, Washington, USAi
Regional Level Types
Silver Star ProspectProspect
Silver Star MountainMountain
Clark CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
45° 43' 48'' North , 122° 17' 7'' West
Latitude & Longitude (decimal):
45.73009,-122.28535
GRN:
N31W62
Type:
Prospect
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Venersborg3,745 (2011)11.8km
Fern Prairie1,884 (2011)13.6km
Hockinson4,771 (2011)15.7km
Washougal15,288 (2017)17.2km
Yacolt1,686 (2017)17.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Mt Hood Rock ClubGresham, Oregon28km
Millennium Diggers ClubPortland, Oregon38km
Oregon Agate & Mineral Society, Inc.Portland, Oregon38km
Columbia-Willamette Faceters' GuildPortland/West Linn, Oregon48km
Clackamette Mineral and Gem ClubOregon City, Oregon48km
Mindat Locality ID:
19230
Long-form identifier:
mindat:1:2:19230:4
GUID (UUID V4):
0


Sections 14, 15, 22, 23
Listed in WASHOUGAL DISTRICT
A Cu,Au,Ag,Pb,Zn,Ni mine located the west slope of Silver Star Mountain that worked mineralized extrusive rock.
W/2 sec. 23, T.3N., R.4E
Structure: Fractures

Alteration: Oxidation

Tectonics: Cascade Volcanic Arc

Deposit: Mineralization occurs in two main and several smaller northwest trending, steeply dipping fracture zones in andesite. The goat vein is a quartz-filled shear zone, 1-18 ft thick, that can be traced for at least 3,000 ft. Ore minerals are disseminated within brecciated rock. The oxidized vein is in silicified andesite near its contact with the silver star pluton. Map of prospect and location map available, moen, 1977 ; info.src : 1 pub lit

Deposit type: Polymetallic veins

Development: From 1930-1944, numerous open cuts were dug, 3 adits driven, samples collected and assayed, and several core holes drilled, but no shipments were made. Property idle in 1977

Geology: Deposit is near the contact of silver star pluton and skamania volcanics

Rock formation(s): Silver Star Pluton
Skamania Volcanics


Ore(s): Fracture Zone

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


11 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Galena
Formula: PbS
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var. Specularite
Formula: Fe2O3
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Native Gold
Formula: Au
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Wad'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘvar. Specularite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘSiderite5.AB.05FeCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Unclassified
ⓘ'Limonite'-
ⓘ'Wad'-

List of minerals for each chemical element

HHydrogen
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ Hematite var. SpeculariteFe2O3
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
Feⓘ Hematite var. SpeculariteFe2O3
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Other Databases

Link to USGS MRDS:10048031

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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References

Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.p.51
Phillips, W.M., (1987), Geologic Map of the Vancouver Quadrangle, Washington and Oregon: Washington Division of Geology and Earth Resources Open-file Report 87-10, Scale 1:100,000.
Moen, W. S. (1997) St. Helens and Washougal mining districts of the southern Cascades of Washington. Information Circular 60. Washington Division of Mines and Geology Pages 43, 46-48
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