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Mount Roosevelt, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USAi
Regional Level Types
Mount RooseveltMountain
Middle Fork of the Snoqualmie RiverRiver
Snoqualmie Mining DistrictMining District
King CountyCounty (Historical)
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
47° 28' 50'' North , 121° 30' 8'' West
Latitude & Longitude (decimal):
47.48083,-121.50250
GRN:
N32W60
Type:
Mountain
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Snoqualmie Pass311 (2011)12.5km
Tanner1,018 (2011)18.3km
Riverbend2,132 (2011)18.7km
Wilderness Rim1,523 (2017)20.3km
North Bend6,679 (2017)21.4km
Mindat Locality ID:
15512
Long-form identifier:
mindat:1:2:15512:7
GUID (UUID V4):
0


Near the summit of Mt. Roosevelt fractures in granodiorite are lined with large sprays of schorl. Associated with it are small quartz crystals and epidesmine habit stilbite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Habit: prisms to 5/8"
Colour: white
ⓘ 'Chlorite Group'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Habit: terminated crystal sprays to 2.5"
Colour: Dark green
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Rock Crystal
Formula: SiO2
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘvar. Rock Crystal4.DA.05SiO2
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
OOxygen
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Quartz var. Rock CrystalSiO2
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Quartz var. Rock CrystalSiO2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ TitaniteCaTi(SiO4)O
FeIron
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)

Other Regions, Features and Areas containing this locality

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North America PlateTectonic Plate

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References

Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA.
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