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URL: https://www.mindat.org/loc-95690.html

⇱ Goodman Brothers deposit, Mark West Springs, West Mayacmas Mining District, Sonoma County, California, USA

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Goodman Brothers deposit, Mark West Springs, West Mayacmas Mining District, Sonoma County, California, USAi
Regional Level Types
Goodman Brothers depositDeposit
Mark West SpringsTown
West Mayacmas Mining DistrictMining District
Sonoma CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° 33' 18'' North , 122° 43' 54'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Larkfield-Wikiup8,884 (2011)4.9km
Fulton541 (2011)7.3km
Windsor27,464 (2017)7.4km
Santa Rosa174,972 (2017)12.8km
Healdsburg11,742 (2017)13.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Santa Rosa Mineral And Gem Society, Inc.Santa Rosa, California13km
Mindat Locality ID:
95690
Long-form identifier:
mindat:1:2:95690:6
GUID (UUID V4):
0


A diatomaceous earth mine located 1.3 km (4,100 feet) WNW of Mark West Springs.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Entries shown in red are rocks recorded for this region.

Detailed Mineral List:

ⓘ Opal
Formula: SiO2 · nH2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘOpal4.DA.10SiO2 · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ OpalSiO2 · nH2O
OOxygen
Oⓘ OpalSiO2 · nH2O
SiSilicon
Siⓘ OpalSiO2 · nH2O

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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References

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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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