Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Pedro Claim, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USAi
Regional Level Types
Pedro ClaimClaim
Middle Fork of the Snoqualmie RiverRiver
Snoqualmie Mining DistrictMining District
King CountyCounty (Historical)
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
47° 31' 13'' North , 121° 20' 25'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Snoqualmie Pass311 (2011)14.9km
Skykomish207 (2017)21.1km
Baring220 (2011)30.1km
Tanner1,018 (2011)30.9km
Riverbend2,132 (2011)31.4km
Mindat Locality ID:
15044
Long-form identifier:
mindat:1:2:15044:1
GUID (UUID V4):
0
Other/historical names associated with this locality:
Pedro Pipe, Pedro Pipe Claim


A patented Cu-Au-Ag-Bi-Sb claim located in the Goldmyer Hot Springs area.
Structure: Northwest-Trending Shear Zones

Tectonics: Cascade Volcanic Arc

Deposit: Deposit has been given the informal name of a breccia pipe cu deposit, for which there is no published model. Breccia pipe is elliptical with long axis trending north-northeast based on map in gualtieri and others

Deposit type: Porphyry Cu

Rock formation(s): Snoqualmie Batholith;Snoqualmie Batholith


Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Baryte
Formula: BaSO4
Habit: tablets to a few cm
Colour: Colorless to white, zoned
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Habit: striated tetrahedrons to an 1" in diameter
'Chlorite Group'
Cosalite
Formula: Pb2Bi2S5
Habit: fibrous aggregates and coatings
Galena
Formula: PbS
Habit: stalactitic crystal formations to 1.5"
'Gustavite-Lillianite Series'
Molybdenite
Formula: MoS2
Pyrite
Formula: FeS2
Habit: cubes and pyritohedrons to a few cm
Colour: yellow
Fluorescence: none
Description: often encrusted with limonite
Quartz
Formula: SiO2
Habit: Terminated hexagonal prisms to several cm
Colour: clear to white
Fluorescence: none
Scheelite
Formula: Ca(WO4)
Description: rare
Sphalerite
Formula: ZnS
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Habit: tetrahedral to a few cm
Colour: grey
Fluorescence: none
Vikingite ?
Formula: Ag5Pb8Bi13S30
Description: (Analytical data could possibly also fit heyrovskyite.)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Cosalite2.JB.10Pb2Bi2S5
Vikingite ?2.JB.40aAg5Pb8Bi13S30
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Scheelite7.GA.05Ca(WO4)
Unclassified
'Chlorite Group'-
'Gustavite-Lillianite Series'-

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O BaryteBaSO4
O CalciteCaCO3
O QuartzSiO2
O ScheeliteCa(WO4)
SiSilicon
Si QuartzSiO2
SSulfur
S BaryteBaSO4
S ChalcopyriteCuFeS2
S CosalitePb2Bi2S5
S GalenaPbS
S MolybdeniteMoS2
S PyriteFeS2
S SphaleriteZnS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S VikingiteAg5Pb8Bi13S30
S Gustavite-Lillianite Series
CaCalcium
Ca CalciteCaCO3
Ca ScheeliteCa(WO4)
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag VikingiteAg5Pb8Bi13S30
Ag Gustavite-Lillianite Series
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Ba BaryteBaSO4
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb CosalitePb2Bi2S5
Pb GalenaPbS
Pb VikingiteAg5Pb8Bi13S30
Pb Gustavite-Lillianite Series
BiBismuth
Bi CosalitePb2Bi2S5
Bi VikingiteAg5Pb8Bi13S30
Bi Gustavite-Lillianite Series

Other Databases

Link to USGS MRDS:10048655

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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