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Spanish Dry Diggings (Spanish Dry Diggins), Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USAi
Regional Level Types
Spanish Dry Diggings (Spanish Dry Diggins)Diggings
Greenwood DistrictMining District
Northwest Segment Mother LodeLode
El Dorado CountyCounty
CaliforniaState
USACountry

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04553680017272092912228.jpg
View of the American River placer gold mining area, ca. 1900.

Middle Fork American River placer, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
06254250017272026708776.jpg
Mineralogical Record cover photo of the "Fricot Nugget"

Grit Mine, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
09556080017272026712752.jpg
Native Gold, etc.

Grit Mine, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
04553680017272092912228.jpg
View of the American River placer gold mining area, ca. 1900.

Middle Fork American River placer, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
06254250017272026708776.jpg
Mineralogical Record cover photo of the "Fricot Nugget"

Grit Mine, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
09556080017272026712752.jpg
Native Gold, etc.

Grit Mine, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
04553680017272092912228.jpg
View of the American River placer gold mining area, ca. 1900.

Middle Fork American River placer, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
06254250017272026708776.jpg
Mineralogical Record cover photo of the "Fricot Nugget"

Grit Mine, Spanish Dry Diggings, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USA
Latitude & Longitude (WGS84):
38° 56' 46'' North , 120° 54' 37'' West
Latitude & Longitude (decimal):
38.94611,-120.91028
GRN:
N26W68
Type:
Diggings
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Auburn Lake Trails3,426 (2011)5.1km
Georgetown2,367 (2011)7.6km
Cool4,100 (2017)11.2km
Meadow Vista3,217 (2011)11.4km
Foresthill1,483 (2011)11.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
El Dorado County Mineral and Gem SocietyPlacerville, California26km
Gold Country Treasure SeekersPlacerville, California26km
Nevada County Gem & Mineral SocietyGrass Valley, California33km
Roseville Rock RollersRoseville, California39km
Fossils for Fun Society, Inc.North Highlands, California49km
Mindat Locality ID:
217109
Long-form identifier:
mindat:1:2:217109:1
GUID (UUID V4):
0



A locale.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

7 valid minerals.

Detailed Mineral List:

ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Calcite
Formula: CaCO3
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
Description: Fibrous; occurs in veins.
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 19 localities in this region.
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 14 localities in this region.
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
Unclassified
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ CalciteCaCO3
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ QuartzSiO2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
SiSilicon
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ QuartzSiO2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ PyriteFeS2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ ArsenopyriteFeAsS
Feⓘ PyriteFeS2
AsArsenic
Asⓘ ArsenopyriteFeAsS
AuGold
Auⓘ Native GoldAu

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Dana, Edward Salisbury (1886), On the crystallization of gold American Journal of Science, 3rd. series: 32: 132-138; […Zeitschr. Kristallographie, Band 12, 275-281(1886); …(abstract): Neues Jahrb., 1889: 226-227]: 138.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 203.
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