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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Puffball claim, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USAi
Regional Level Types
Puffball claimClaim (Active)
Middle Fork of the Snoqualmie RiverRiver
Snoqualmie Mining DistrictMining District
King CountyCounty (Historical)
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
47° 29' 53'' North , 121° 22' 27'' West
Latitude & Longitude (decimal):
Area:
1.0 km2
Type:
Claim (Active) - last checked 2018
Nearest Settlements:
PlacePopulationDistance
Snoqualmie Pass311 (2011)11.9km
Skykomish207 (2017)23.5km
Tanner1,018 (2011)28.0km
Riverbend2,132 (2011)28.5km
Wilderness Rim1,523 (2017)30.2km
Mindat Locality ID:
18266
Long-form identifier:
mindat:1:2:18266:2
GUID (UUID V4):
0


A small breccia zone on the south side of the Middle Fork river, Goldmeyer Hot Springs Area. The name is derived from asterated mica balls included in quartz. Recent work by J.T. Hilton has revealed a huge variety of minerals in vugs at this site, the most diverse of any Middle Fork breccia.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Aragonite
Formula: CaCO3
Description: Occurs in white spheroidal aggregates.
Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: One specimen has been found to date.
Goethite
Formula: Fe3+O(OH)
Gypsum
Formula: CaSO4 · 2H2O
Gypsum var. Selenite
Formula: CaSO4 · 2H2O
'K Feldspar'
'K Feldspar var. Adularia'
Formula: KAlSi3O8
'Limonite'
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var. Sceptre Quartz
Formula: SiO2
Scheelite
Formula: Ca(WO4)
Description: Two Scheelites have been found, one on matrix.
Siderite
Formula: FeCO3

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Quartz4.DA.05SiO2
var. Sceptre Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Aragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
var. Selenite7.CD.40CaSO4 · 2H2O
Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
'K Feldspar
var. Adularia'
-KAlSi3O8
'Limonite'-
'K Feldspar'-

List of minerals for each chemical element

HHydrogen
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H GoethiteFe3+O(OH)
H GypsumCaSO4 · 2H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H Gypsum var. SeleniteCaSO4 · 2H2O
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C AragoniteCaCO3
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O K Feldspar var. AdulariaKAlSi3O8
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AragoniteCaCO3
O BaryteBaSO4
O CalciteCaCO3
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O GoethiteFe3+O(OH)
O GypsumCaSO4 · 2H2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O ScheeliteCa(WO4)
O SideriteFeCO3
O Gypsum var. SeleniteCaSO4 · 2H2O
O Quartz var. Sceptre QuartzSiO2
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al K Feldspar var. AdulariaKAlSi3O8
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si K Feldspar var. AdulariaKAlSi3O8
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Quartz var. Sceptre QuartzSiO2
SSulfur
S BaryteBaSO4
S ChalcopyriteCuFeS2
S GypsumCaSO4 · 2H2O
S MolybdeniteMoS2
S PyriteFeS2
S Gypsum var. SeleniteCaSO4 · 2H2O
KPotassium
K K Feldspar var. AdulariaKAlSi3O8
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca GypsumCaSO4 · 2H2O
Ca ScheeliteCa(WO4)
Ca Gypsum var. SeleniteCaSO4 · 2H2O
FeIron
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe GoethiteFe3+O(OH)
Fe PyriteFeS2
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
MoMolybdenum
Mo MolybdeniteMoS2
BaBarium
Ba BaryteBaSO4
WTungsten
W ScheeliteCa(WO4)

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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