Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Calistoga Hot Springs, Napa County, California, USAi
Regional Level Types
Calistoga Hot SpringsHot Springs
Napa CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° 40' 14'' North , 122° 32' 21'' West
Latitude & Longitude (decimal):
38.67056,-122.53917
GRN:
N26W69
Type:
Hot Springs
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Calistoga5,330 (2017)10.8km
Middletown1,323 (2011)11.2km
Angwin3,051 (2011)13.1km
Hidden Valley Lake5,579 (2011)15.4km
Deer Park1,267 (2011)16.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Santa Rosa Mineral And Gem Society, Inc.Santa Rosa, California30km
Mindat Locality ID:
83644
Long-form identifier:
mindat:1:2:83644:4
GUID (UUID V4):
0


A Hg occurrence.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

6 valid minerals.

Detailed Mineral List:

ⓘ Cinnabar
Formula: HgS
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'Manganese Oxides'
ⓘ Native Mercury
Formula: Hg
Description: Occurs in considerable amounts in mud of the hot springs.
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Pyrite
Formula: FeS2
ⓘ Rhodochrosite
Formula: MnCO3
Description: Occurs as spherules.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Mercury1.AD.05Hg
Group 2 - Sulphides and Sulfosalts
ⓘCinnabar2.CD.15aHgS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘOpal4.DA.10SiO2 · nH2O
Group 5 - Nitrates and Carbonates
ⓘRhodochrosite5.AB.05MnCO3
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
ⓘ'Manganese Oxides'-

List of minerals for each chemical element

HHydrogen
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ OpalSiO2 · nH2O
CCarbon
Cⓘ RhodochrositeMnCO3
OOxygen
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ OpalSiO2 · nH2O
Oⓘ RhodochrositeMnCO3
AlAluminium
Alⓘ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ OpalSiO2 · nH2O
SSulfur
Sⓘ CinnabarHgS
Sⓘ PyriteFeS2
MnManganese
Mnⓘ RhodochrositeMnCO3
FeIron
Feⓘ PyriteFeS2
HgMercury
Hgⓘ CinnabarHgS
Hgⓘ Native MercuryHg

Localities in this Region

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

Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.
Ransome, Alfred Leslie & J.L. Kellogg (1939), Quicksilver resources of California: California Journal of Mines and Geology, California Division Mines (Report 35): 35(4): 353-486.
Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252
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