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Spruce #16 claim (Spruce Ridge), Goldmyer Hot Springs, King Co., Washington, USAi
Regional Level Types
Spruce #16 claim (Spruce Ridge)Group of Mines (Active)
Goldmyer Hot SpringsHot Springs
King Co.County
WashingtonState
USACountry

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Key
Latitude & Longitude (WGS84):
47° 30' 29'' North , 121° 22' 12'' West
Latitude & Longitude (decimal):
Locality type:
Group of Mines (Active) - last checked 2019
Nearest Settlements:
PlacePopulationDistance
Snoqualmie Pass311 (2011)13.1km
Skykomish207 (2017)22.4km
Tanner1,018 (2011)28.5km
Riverbend2,132 (2011)28.9km
Wilderness Rim1,523 (2017)30.7km
Other/historical names associated with this locality:
Spruce 15 claim; Spruce `16 claim


A mineral specimen/gemstone occurrence and active mine/group of claims located in the SE¼ sec. 2, T23N, R11E, WM, along the Middle Fork Snoqualmie River. The USGS MRDS database stated accuracy for this locality is 1,000 meters.

Claims filed by Bear Creek Mining in the 1950's, Spruce was part of a group of 170 claims held for exploration of a large, deep-seated Cu porphyry. Worked for specimens by What on Earth, Inc., Ohio (Sandy Ludlum) in 1977 & 1978; Bob Jackson, Stan Esbenshade, and Neil Pfaff 1979-1982, & Geology Adventures, Inc. from 1983 to 2008. Patented in 2001, mineral rights now held by Spruce Collectors, LLC, a membership organization.

Mineralization is a quartz-pyrite deposit hosted in breccia zones in granodiorite. Local rocks include Tertiary granitic rocks.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


14 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Habit: subparallel curved rohombhedral crystals
Colour: white, orange, light tan
Description: Massive ankerite present as open-space filling in pockets. crystalline ankerite selectively coats pyrite, and forms attractive rosettes perched on quartz.
Reference: Cannon, B. (1975): Minerals of Washington, p.45,54, Ream, L. (1994): Gems and Minerals of Washington; Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Baryte
Formula: BaSO4
Habit: tabular bladed crystals to several inches across, occasionally perched on quartz crystal plates.
Colour: white, bluish, tan
Description: Often zoned, usually slightly etched producing rounded crystal edges.
Reference: Cannon, B. (1975): Minerals of Washington, p.45,54; Ream, L. (1994): Gems and Minerals of Washington; Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
'Bravoite'
Formula: (Fe,Ni)S2
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Calcite
Formula: CaCO3
Habit: crystals to 1" in length
Colour: clear to translucent
Reference: Gems and Minerals of Washington, Lanny Ream 1994; Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Chalcopyrite
Formula: CuFeS2
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
'Chlorite Group'
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Cosalite
Formula: Pb2Bi2S5
Colour: silvery
Description: Usually as tapered needles included the base of quartz crystals.
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Colour: green to brown
Description: As a rock-forming mineral in areas of thermally altered breccia; as inclusions in quartz crystals.
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Galena
Formula: PbS
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Goethite
Formula: α-Fe3+O(OH)
Reference: Norman King
Gold
Formula: Au
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Malachite
Formula: Cu2(CO3)(OH)2
Description: As coatings from decomposing chalcopyrite
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Pyrite
Formula: FeS2
Habit: Cubes and pyritohedrons to 5 inch diameter. Often truncated by octohedron, trisoctohedron, and diploid.
Colour: corroded to brilliant brass-yellow; silvery if cleaned in acid
Description: Pyrite perched atop quartz crystals are common, particularly when a second generation of pyrite crystallization/etching is present in the pocket. Specimens of perched pyrites usually have a layer of iron oxides between the quartz and pyrite crystals, and frequently the contacts are somewhat distorted or hollow due to etching.
Reference: Cannon, B. (1975): Minerals of Washington, p.45,54; Ream, L. (1994): Gems and Minerals of Washington; Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Quartz
Formula: SiO2
Habit: crystals to many inches in size
Colour: clear to amethyst
Description: japan law twins and scepter crystals occasionally found
Reference: Cannon, B. (1975): Minerals of Washington, p.45,54; Ream, L. (1994): Gems and Minerals of Washington; Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Quartz var: Amethyst
Formula: SiO2
Habit: Always sceptered
Colour: pale purple to grape juice
Reference: Bob Jackson, mine owner; Rocks & Minerals (1991) 66:466-476
Quartz var: Sceptre Quartz
Formula: SiO2
Colour: clear to milky to amethystine
Description: over 50% of quartz crystals can be sceptered in some vugs.
Reference: Gems and Minerals of Washington, Lanny Ream 1994
Siderite
Formula: FeCO3
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
Sphalerite
Formula: ZnS
Reference: Lasmanis, R. Geology of Spruce 16 claim, Rocks & Minerals, 1985
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Cosalite2.JB.10Pb2Bi2S5
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Sceptre Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
'Tetrahedrite'3.3.6.1Cu6(Cu4X2)Sb4S13
2.5 < ø < 3
Cosalite3.5.9.1Pb2Bi2S5
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
Quartz
var: Amethyst
-SiO2
var: Sceptre Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H Goethiteα-Fe3+O(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O Quartz (var: Sceptre Quartz)SiO2
O Quartz (var: Amethyst)SiO2
O CalciteCaCO3
O AnkeriteCa(Fe2+,Mg)(CO3)2
O BaryteBaSO4
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
O SideriteFeCO3
O Goethiteα-Fe3+O(OH)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O MalachiteCu2(CO3)(OH)2
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Quartz (var: Sceptre Quartz)SiO2
Si Quartz (var: Amethyst)SiO2
Si QuartzSiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SSulfur
S PyriteFeS2
S TetrahedriteCu6(Cu4X2)Sb4S13
S BaryteBaSO4
S GalenaPbS
S SphaleriteZnS
S Bravoite(Fe,Ni)S2
S ChalcopyriteCuFeS2
S CosalitePb2Bi2S5
CaCalcium
Ca CalciteCaCO3
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
FeIron
Fe PyriteFeS2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Bravoite(Fe,Ni)S2
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe SideriteFeCO3
Fe Goethiteα-Fe3+O(OH)
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
NiNickel
Ni Bravoite(Fe,Ni)S2
CuCopper
Cu TetrahedriteCu6(Cu4X2)Sb4S13
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
SbAntimony
Sb TetrahedriteCu6(Cu4X2)Sb4S13
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu
PbLead
Pb GalenaPbS
Pb CosalitePb2Bi2S5
BiBismuth
Bi CosalitePb2Bi2S5

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Cannon, B. (1975): Minerals of Washington: 45, 54, 140, 145.
Medici, J., Ludlum, N., Pfaff, N. & Hawes, W. (1978): Quartz & Pyrite from King County, Washington. Mineralogical Record: 9: 349-358
Lasmanis, Raymond (1991), Minerals of the Spruce 16 Claim King County, Washington, Rocks & Minerals: 66(4): 316 - 320.
Ream, Lanny R. (1991), Washington's Japan-Law Twin and Sceptered Quartz Localities, Rocks & Minerals: 66(6): 466–476. (doi:10.1080/00357529.1991.11761656)
Ream, L. (1994): Gems and Minerals of Washington.
U.S. Bureau of Land Management (1994), Mining claim records.
U.S. Bureau of Mines (1994), Directory of Principal U.S. Gemstone Producers in 1993; U.S. Bureau of Mines Mineral Industry Surveys: 59.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0530331265.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10204893.
Jackson, Bob (2008), American Mineral Treasures: 328 - 335.
Jackson, Bob (2015), Spruce Ridge, King County, Washington: Evolution of a Great American Collecting Locality, Rocks & Minerals: 90(4): 366-373.
USGS Big Snow Mountain, Washington, quadrangle 7½ minute topo map.

Other Databases

USGS MRDS Record:10204893

External Links


Other Regions, Features and Areas containing this locality

North America
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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