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Marshall Beach, Fort Point, San Francisco, San Francisco County, California, USAi
Regional Level Types
Marshall BeachBeach
Fort PointPoint
San FranciscoCity
San Francisco CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 48' 6'' North , 122° 28' 47'' West
Latitude & Longitude (decimal):
37.80170,-122.47983
GeoHash:
G#: 9q8zhcsfv
GRN:
N26W69
Type:
Beach
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
San Francisco864,816 (2017)6.1km
Chinatown100,574 (2017)6.3km
Sausalito7,156 (2017)6.4km
Noe Valley22,893 (2017)7.0km
Mission District47,234 (2017)7.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
San Francisco Gem and Mineral Society, Inc.San Francisco, California6km
Northern California Geological SocietyOrinda, California28km
East Bay Mineral and Lapidary ClubHayward, California37km
Mineral & Gem Society of Castro ValleyHayward, California38km
Vallejo Gem & Mineral SocietyVallejo, California39km
Mindat Locality ID:
209349
Long-form identifier:
mindat:1:2:209349:2
GUID (UUID V4):
0


An occurrence near Fort Point.
Marshall Beach is a 400-foot-long (366-meter-long) beach on the west side of Tomales Bay in the northern part of the national seashore.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
ⓘHydromagnesite5.DA.05Mg5(CO3)4(OH)2 · 4H2O
Group 9 - Silicates
ⓘXonotlite9.DG.35Ca6(Si6O17)(OH)2
Unclassified
ⓘ'Apophyllite Group'-AB4[Si8O22]X · 8H2O

List of minerals for each chemical element

HHydrogen
Hⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Hⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Hⓘ XonotliteCa6(Si6O17)(OH)2
CCarbon
Cⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
OOxygen
Oⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Oⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Oⓘ XonotliteCa6(Si6O17)(OH)2
MgMagnesium
Mgⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
SiSilicon
Siⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Siⓘ XonotliteCa6(Si6O17)(OH)2
CaCalcium
Caⓘ XonotliteCa6(Si6O17)(OH)2

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

Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 222, 390
Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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