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Flagstaff Hill occurrences, Flagstaff Hill, Salmon Falls Mining District (Flagstaff Hill area), El Dorado County, California, USAi
Regional Level Types
Flagstaff Hill occurrencesGroup of Occurrences
Flagstaff HillHill
Salmon Falls Mining District (Flagstaff Hill area)Mining District
El Dorado CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° 46' 4'' North , 121° 4' 58'' West
Latitude & Longitude (decimal):
38.76778,-121.08278
GeoHash:
G#: 9qcus9qnw
GRN:
N26W69
Type:
Group of Occurrences
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Granite Bay20,402 (2011)7.0km
El Dorado Hills42,108 (2011)9.1km
Loomis6,733 (2017)11.2km
Penryn831 (2011)12.0km
Newcastle1,224 (2011)12.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Roseville Rock RollersRoseville, California18km
El Dorado County Mineral and Gem SocietyPlacerville, California25km
Gold Country Treasure SeekersPlacerville, California25km
Fossils for Fun Society, Inc.North Highlands, California27km
Sacramento Valley Detecting BuffsNorth Highlands, California27km
Mindat Locality ID:
46067
Long-form identifier:
mindat:1:2:46067:6
GUID (UUID V4):
0


Occurrences in the SE¼SE¼ sec. 27, T11N, R8E, MDM, at Flagstaff Hill, SE of Pilot Hill.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Chromium-bearing Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
ⓘ Clinochlore var. Pennine
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
ⓘ Clinochlore var. Sheridanite
Formula: (Mg,Al,Fe)6(Si,Al)4O10(OH)8
ⓘ Rectorite
Formula: (Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Chromium-bearing Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
ⓘvar. Ripidolite9.EC.55(Mg,Fe,Al)6(Si,Al)4O10(OH)8
ⓘvar. Pennine9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Sheridanite9.EC.55(Mg,Al,Fe)6(Si,Al)4O10(OH)8
ⓘRectorite9.EC.60(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O

List of minerals for each chemical element

HHydrogen
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Hⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Hⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Hⓘ Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Hⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8
OOxygen
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Oⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Oⓘ Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Oⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8
NaSodium
Naⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
MgMagnesium
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Mgⓘ Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Mgⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8
AlAluminium
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Alⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Alⓘ Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Alⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8
SiSilicon
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
Siⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Siⓘ Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Siⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8
CaCalcium
Caⓘ Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
CrChromium
Crⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
FeIron
Feⓘ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Feⓘ Clinochlore var. Sheridanite(Mg,Al,Fe)6(Si,Al)4O10(OH)8

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.

References

Post, J.L. and Plummer, C.C. (1972) The chlorite series of Flagstaff Hill area, California. Clays and Clay Minerals: 20: 271-283
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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