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!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USAi
Regional Level Types
Ward Creek [1]Creek
Cazadero- not defined -
Coast RangeMountain Range
Sonoma CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
02242140017272061505950.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
08236590017272061519049.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
04132930017271949133285.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
07121890017272051389878.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
01142730017271923463177.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
07121890017272051389878.jpg
Glaucophane, etc.

Ward Creek [1], Cazadero, Coast Range, Sonoma County, California, USA
Latitude & Longitude (WGS84):
38° 32' 20'' North , 123° 5' 44'' West
Latitude & Longitude (decimal):
38.53889,-123.09556
GRN:
N26W70
Type:
Creek
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Cazadero354 (2011)1.1km
Guerneville4,534 (2011)9.6km
Jenner136 (2011)10.1km
Monte Rio1,152 (2011)11.1km
Camp Meeker2,461 (2013)17.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Santa Rosa Mineral And Gem Society, Inc.Santa Rosa, California35km
Mindat Locality ID:
30995
Long-form identifier:
mindat:1:2:30995:9
GUID (UUID V4):
0


An occurrence in the NE¼ sec. 17, T8N, R11W, MDM, on Ward Creek about 1.2 km WNW of Cazadero.

NOTE: Coordinates provided are approximate to the center of sec. 17.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


17 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Description: From metasediments.
References:
www.minsocam.org/msa/Handbook/Winchite.PDF.
COLEMAN, R. G., LEE, D. E. (1963) Glaucophane-bearing Metamorphic Rock Types of the Cazadero Area, California. Journal of Petrology, 4 (2) 260-301 doi:10.1093/petrology/4.2.260p.260
Lee, Donald Edward, Coleman, R.G., Bastron, H., and Smith, V.C. (1966) A two amphibole glaucophane schist in the Franciscan formation, Cazadero area, California. USGS Professional Paper 550-C: 148
Himmelberg, G. R., Papike, J. J. (1969) Coexisting amphiboles from blueschist facies metamorphic rocks. Journal of Petrology, 10 (1) 102-114 doi:10.1093/petrology/10.1.102
Klein, Cornelis (1969) Two-amphibole assemblages in the system actinolite-hornblende glaucophane. American Mineralogist, 54 (1-2) 212-237 p.221
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Crossite'
ⓘ Deerite
Formula: Fe2+6Fe3+3(Si6O17)O3(OH)5
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: Constitutes an average 19.9% volume per centum of the glaucophane schists.
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Glaucophane
Formula: ◻Na2(Mg3Al2)Si8O22(OH)2
Description: Occurs as glaucophane schist.
ⓘ Grunerite
Formula: ◻Fe2+2Fe2+5(Si8O22)(OH)2
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ Howieite
Formula: Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
ⓘ Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Description: Occurs in a vuggy vein cutting glaucophane schist.
ⓘ Quartz
Formula: SiO2
ⓘ Rhodonite
Formula: CaMn3Mn[Si5O15]
ⓘ Riebeckite
Formula: ◻Na2(Fe2+3Fe3+2)Si8O22(OH)2
ⓘ Rutile
Formula: TiO2
Description: Contains noteworthy amounts of V, Zr, Cr & Ba. Abundant in glaucophane schists.
ⓘ Stilpnomelane
Formula: K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
ⓘ Taneyamalite
Formula: (Na,Ca)Mn2+12(Si,Al)12(O,OH)44
ⓘ Titanite
Formula: CaTi(SiO4)O
Description: The most abundant accessory mineral in the schists.
ⓘ Winchite
Formula: ◻(CaNa)(Mg4Al)(Si8O22)(OH)2

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘOmphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘGrunerite9.DE.05◻Fe2+2Fe2+5(Si8O22)(OH)2
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘWinchite9.DE.20◻(CaNa)(Mg4Al)(Si8O22)(OH)2
ⓘGlaucophane9.DE.25◻Na2(Mg3Al2)Si8O22(OH)2
ⓘRiebeckite9.DE.25◻Na2(Fe2+3Fe3+2)Si8O22(OH)2
ⓘDeerite9.DH.60Fe2+6Fe3+3(Si6O17)O3(OH)5
ⓘHowieite9.DH.65Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
ⓘTaneyamalite9.DH.65(Na,Ca)Mn2+12(Si,Al)12(O,OH)44
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]
ⓘStilpnomelane9.EG.40K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Crossite'-
ⓘ'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Hⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Hⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Hⓘ Riebeckite◻Na2(Fe32+Fe23+)Si8O22(OH)2
Hⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
Hⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Hⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Oⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Oⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Oⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Oⓘ QuartzSiO2
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ Riebeckite◻Na2(Fe32+Fe23+)Si8O22(OH)2
Oⓘ RutileTiO2
Oⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
Oⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
Oⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Oⓘ Garnet GroupX3Z2(SiO4)3
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Naⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Naⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Naⓘ Riebeckite◻Na2(Fe32+Fe23+)Si8O22(OH)2
Naⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Naⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Mgⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Mgⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mgⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
Mgⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Alⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Alⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Alⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
Alⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Alⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
Alⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Siⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Siⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Siⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
Siⓘ Riebeckite◻Na2(Fe32+Fe23+)Si8O22(OH)2
Siⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
Siⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
Siⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Siⓘ Garnet GroupX3Z2(SiO4)3
KPotassium
Kⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Caⓘ RhodoniteCaMn3Mn[Si5O15]
Caⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Winchite◻(CaNa)(Mg4Al)(Si8O22)(OH)2
Caⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
TiTitanium
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
MnManganese
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
Mnⓘ Taneyamalite(Na,Ca)Mn122+(Si,Al)12(O,OH)44
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AegirineNaFe3+Si2O6
Feⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Feⓘ HowieiteNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10
Feⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Feⓘ Riebeckite◻Na2(Fe32+Fe23+)Si8O22(OH)2
Feⓘ StilpnomelaneK(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27

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

www.minsocam.org/msa/Handbook/Winchite.PDF.
DHZ, Vol. 2B, 2nd ed., p. 755.
BORG, IRIS Y. (1956) Glaucophane schists and eclogite near Healdsburg, California. Geological Society of America Bulletin, 67 (12). 1563-1584 doi:10.1130/0016-7606(1956)67[1563:gsaenh]2.0.co;2
COLEMAN, R. G., LEE, D. E. (1963) Glaucophane-bearing Metamorphic Rock Types of the Cazadero Area, California. Journal of Petrology, 4 (2) 260-301 doi:10.1093/petrology/4.2.260p.260
Lee, Donald Edward, Coleman, R.G., Bastron, H., and Smith, V.C. (1966) A two amphibole glaucophane schist in the Franciscan formation, Cazadero area, California. USGS Professional Paper 550-C: 148, 149, 153, 154.
Essene, E. J., Fyfe, W. S. (1967) Omphacite in Californian metamorphic rocks. Contributions to Mineralogy and Petrology, 15 (1) 1-23 doi:10.1007/bf01167213p.4
COLEMAN, R. G.; PAPIKE, J. J. (1968) Alkali amphiboles from the blueschists of Cazadero, California. Journal of Petrology, 9 (1). p.105-122. doi:10.1093/petrology/9.1.105Pp. 109, 111, 113-118
Himmelberg, G. R., Papike, J. J. (1969) Coexisting amphiboles from blueschist facies metamorphic rocks. Journal of Petrology, 10 (1) 102-114 doi:10.1093/petrology/10.1.102
Klein, Cornelis (1969) Two-amphibole assemblages in the system actinolite-hornblende glaucophane. American Mineralogist, 54 (1-2) 212-237 pages 221, 225
Muir Wood, Robert (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine, 43 (327) 363-370 doi:10.1180/minmag.1979.043.327.08
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
LIOU, J.G.; MARUYAMA, S. (1987) Parageneses and compositions of amphiboles from Franciscan jadeite-glaucophane type facies series metabasites at Cazadero, California. Journal of Metamorphic Geology, 5 (3). p.371-395. doi:10.1111/j.1525-1314.1987.tb00391.x
OH, C. W., LIOU, J. G., MARUYAMA, S. (1991) Low-Temperature Eclogites and Eclogitic Schists in Mn-rich Metabasites in Ward Creek, California; Mn and Fe Effects on the Transition between Blueschist and Eclogite. Journal of Petrology, 32 (2) 275-302 doi:10.1093/petrology/32.2.275
Quick NavTopCommoditiesMineral ListOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
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.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 12:00:41 Page updated: June 15, 2026 18:12:05
Go to top of page