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Bolinas, Marin County, California, USAi
Regional Level Types
BolinasCensus-designated Place
Marin CountyCounty
CaliforniaState
USACountry

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PhotosMapsSearchMineralogy
07466920017272299904750.jpg
Chert, etc.

Agate Beach, Bolinas, Marin County, California, USA
08293520017272299927813.jpg
Agate

Agate Beach, Bolinas, Marin County, California, USA
02851510017272299933214.jpg
Chalcedony, etc.

Agate Beach, Bolinas, Marin County, California, USA
07466920017272299904750.jpg
Chert, etc.

Agate Beach, Bolinas, Marin County, California, USA
08293520017272299927813.jpg
Agate

Agate Beach, Bolinas, Marin County, California, USA
02851510017272299933214.jpg
Chalcedony, etc.

Agate Beach, Bolinas, Marin County, California, USA
07466920017272299904750.jpg
Chert, etc.

Agate Beach, Bolinas, Marin County, California, USA
04694190017272299951283.jpg
Agate

Agate Beach, Bolinas, Marin County, California, USA
Latitude & Longitude (WGS84):
37° 54' 33'' North , 122° 41' 7'' West
Latitude & Longitude (decimal):
37.90944,-122.68528
GRN:
N26W69
Type:
Census-designated Place
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Bolinas1,620 (2011)0.1km
Stinson Beach632 (2011)3.7km
Muir Beach310 (2011)10.5km
San Geronimo446 (2011)11.7km
Woodacre1,348 (2011)12.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
San Francisco Gem and Mineral Society, Inc.San Francisco, California28km
Vallejo Gem & Mineral SocietyVallejo, California43km
Northern California Geological SocietyOrinda, California44km
Mindat Locality ID:
212002
Long-form identifier:
mindat:1:2:212002:0
GUID (UUID V4):
0


An unincorporated populated place.

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.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Chalcopyrite
Formula: CuFeS2
Description: Occurs in veins in serpentine.
ⓘ Galena
Formula: PbS
ⓘ Hydromagnesite
Formula: Mg5(CO3)4(OH)2 · 4H2O
ⓘ Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
Description: Water-worn pebbles of translucent, speckeled chalcedony, many of which contain oil inclusions.
ⓘ Quartz var. Chalcedony
Formula: SiO2
Description: Chalcedony is found at "Agate Beach" as so-called "oil agate", apparently all of them are chert pebbles.
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘHydromagnesite5.DA.05Mg5(CO3)4(OH)2 · 4H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘPlumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Unclassified
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Hⓘ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
OOxygen
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Oⓘ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Oⓘ QuartzSiO2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ QuartzSiO2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
PbLead
Pbⓘ GalenaPbS
Pbⓘ PlumbojarositePb0.5Fe33+(SO4)2(OH)6

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Bolinas,_California
Wikidata ID:Q2686131

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

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

Mitchell, J.R. (1995) Gem Trails of Northern California.
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