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Twin Lakes Limestone deposit, Kaiser Wilderness area, Fresno County, California, USAi
Regional Level Types
Twin Lakes Limestone depositDeposit
Kaiser Wilderness areaWilderness Area
Fresno CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 17' 29'' North , 119° 8' 38'' West
Latitude & Longitude (decimal):
37.29148,-119.14389
GeoHash:
G#:9qek0udnd
GRN:
N25W69
Type:
Deposit
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Big Creek175(2011)13.2km
Shaver Lake634(2011)25.9km
Bass Lake527(2011)37.5km
Auberry2,369(2011)38.2km
Mammoth Lakes7,946(2018)42.5km
Mindat Locality ID:
220101
Long-form identifier:
mindat:1:2:220101:9
GUID (UUID V4):
0


An occurrence located in the NW¼ sec. 28, NE¼ sec. 29, T7S, R26E, MDM, 0.6 km (0.4 mile) E of Lower Twin Lake (on the trail from Lower Twin Lake to Potter Pass), on National Forest wilderness land (Kaiser Wilderness).

NOTE: Coordinates are approximate to the center of the boundary between the NW¼ sec. 28 and the NE¼ sec. 29.

Mineralization is hosted in metamorphosed, crystalline limestone, calc-silicate hornfels and skarn. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAnorthite
Formula:Ca(Al2Si2O8)
Description: Small, well-developed crystals growing out from cavity walls.
ⓘBrucite
Formula:Mg(OH)2
Description: Occurs as irregular masses and rounded pellets in contact with metamorphosed limestone; small globular or spheroidal masses.
ⓘChalcocite
Formula:Cu2S
ⓘClinohumite
Formula:Mg9(SiO4)4F2
Colour: Yellowish orange
Description: Small, striated crystals in contact limestone.
ⓘClintonite
Formula:CaAlMg2(SiAl3O10)(OH)2
Description: Occurs in spinel-bearing calc-silicate hornfels.
ⓘDiaspore
Formula:AlO(OH)
ⓘDiopside
Formula:CaMgSi2O6
Colour: Pink, white, dull gray
Description: Crystals in limestone.
ⓘEpidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘGrossular
Formula:Ca3Al2(SiO4)3
ⓘHedenbergite
Formula:CaFe2+Si2O6
Description: Principal skarn mineral.
ⓘIlvaite
Formula:CaFe3+Fe2+2(Si2O7)O(OH)
Colour: Black
Description: Occurs as slender crystals.
ⓘLudwigite
Formula:Mg2Fe3+(BO3)O2
Habit: Acicular
ⓘMagnetite
Formula:Fe2+Fe3+2O4
Description: Occurs in skarn of the scheelite occurrence.
ⓘOrthoclase
Formula:K(AlSi3O8)
ⓘPargasite
Formula:NaCa2(Mg4Al)(Si6Al2)O22(OH)2
Habit: Prismatic
Colour: Light brown
Description: Fine prismatic crystals.
ⓘPertsevite-(F)
Formula:Mg2(BO3)(F,OH)
ⓘPhlogopite
Formula:KMg3(AlSi3O10)(OH)2
Description: Occurs as isolated crystals and aggregates in contact zones.
ⓘPyrrhotite
Formula:Fe1-xS
ⓘScheelite
Formula:Ca(WO4)
ⓘSpinel
Formula:MgAl2O4
Colour: Colourless, red, black
Description: Crystals 1 to 4 mm diameter.
ⓘTitanite
Formula:CaTi(SiO4)O
ⓘTremolite
Formula:◻Ca2Mg5(Si8O22)(OH)2
Description: Occurs as 1 to 2 inch (2.5 to 5.0 cm) crystals in contact zones.
ⓘVesuvianite
Formula:Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Colour: Greenish brown
Description: Occurs as crystals up to ½ inch (1.25 cm) diameter. Widespread in contact metamorphic limestone.
ⓘWightmanite
Formula:Mg5(BO3)O(OH)5 · 2H2O
ⓘWollastonite
Formula:Ca3(Si3O9)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘPyrrhotite2.CC.10Fe1-xS
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘDiaspore4.FD.10AlO(OH)
ⓘBrucite4.FE.05Mg(OH)2
Group 6 - Borates
ⓘLudwigite6.AB.30Mg2Fe3+(BO3)O2
ⓘWightmanite6.AB.55Mg5(BO3)O(OH)5 · 2H2O
ⓘPertsevite-(F)6.AB.75Mg2(BO3)(F,OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘClinohumite9.AF.55Mg9(SiO4)4F2
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘIlvaite9.BE.07CaFe3+Fe2+2(Si2O7)O(OH)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘDiopside9.DA.15CaMgSi2O6
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘPargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘClintonite9.EC.35CaAlMg2(SiAl3O10)(OH)2
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
HⓘBruciteMg(OH)2
HⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
HⓘDiasporeAlO(OH)
HⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
HⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
HⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
HⓘPhlogopiteKMg3(AlSi3O10)(OH)2
HⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
HⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
HⓘWightmaniteMg5(BO3)O(OH)5 · 2H2O
HⓘPertsevite-(F)Mg2(BO3)(F,OH)
BBoron
BⓘLudwigiteMg2Fe3+(BO3)O2
BⓘWightmaniteMg5(BO3)O(OH)5 · 2H2O
BⓘPertsevite-(F)Mg2(BO3)(F,OH)
OOxygen
OⓘAnorthiteCa(Al2Si2O8)
OⓘBruciteMg(OH)2
OⓘClinohumiteMg9(SiO4)4F2
OⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
OⓘDiasporeAlO(OH)
OⓘDiopsideCaMgSi2O6
OⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OⓘGrossularCa3Al2(SiO4)3
OⓘHedenbergiteCaFe2+Si2O6
OⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
OⓘLudwigiteMg2Fe3+(BO3)O2
OⓘMagnetiteFe2+Fe23+O4
OⓘOrthoclaseK(AlSi3O8)
OⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
OⓘPhlogopiteKMg3(AlSi3O10)(OH)2
OⓘScheeliteCa(WO4)
OⓘSpinelMgAl2O4
OⓘTitaniteCaTi(SiO4)O
OⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
OⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
OⓘWightmaniteMg5(BO3)O(OH)5 · 2H2O
OⓘWollastoniteCa3(Si3O9)
OⓘGarnet GroupX3Z2(SiO4)3
OⓘPertsevite-(F)Mg2(BO3)(F,OH)
FFluorine
FⓘClinohumiteMg9(SiO4)4F2
FⓘPertsevite-(F)Mg2(BO3)(F,OH)
NaSodium
NaⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
MgMagnesium
MgⓘBruciteMg(OH)2
MgⓘClinohumiteMg9(SiO4)4F2
MgⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
MgⓘDiopsideCaMgSi2O6
MgⓘLudwigiteMg2Fe3+(BO3)O2
MgⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
MgⓘPhlogopiteKMg3(AlSi3O10)(OH)2
MgⓘSpinelMgAl2O4
MgⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
MgⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
MgⓘWightmaniteMg5(BO3)O(OH)5 · 2H2O
MgⓘPertsevite-(F)Mg2(BO3)(F,OH)
AlAluminium
AlⓘAnorthiteCa(Al2Si2O8)
AlⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
AlⓘDiasporeAlO(OH)
AlⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
AlⓘGrossularCa3Al2(SiO4)3
AlⓘOrthoclaseK(AlSi3O8)
AlⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
AlⓘPhlogopiteKMg3(AlSi3O10)(OH)2
AlⓘSpinelMgAl2O4
AlⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiSilicon
SiⓘAnorthiteCa(Al2Si2O8)
SiⓘClinohumiteMg9(SiO4)4F2
SiⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
SiⓘDiopsideCaMgSi2O6
SiⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiⓘGrossularCa3Al2(SiO4)3
SiⓘHedenbergiteCaFe2+Si2O6
SiⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
SiⓘOrthoclaseK(AlSi3O8)
SiⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
SiⓘPhlogopiteKMg3(AlSi3O10)(OH)2
SiⓘTitaniteCaTi(SiO4)O
SiⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
SiⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiⓘWollastoniteCa3(Si3O9)
SiⓘGarnet GroupX3Z2(SiO4)3
SSulfur
SⓘChalcociteCu2S
SⓘPyrrhotiteFe1-xS
KPotassium
KⓘOrthoclaseK(AlSi3O8)
KⓘPhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
CaⓘAnorthiteCa(Al2Si2O8)
CaⓘClintoniteCaAlMg2(SiAl3O10)(OH)2
CaⓘDiopsideCaMgSi2O6
CaⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CaⓘGrossularCa3Al2(SiO4)3
CaⓘHedenbergiteCaFe2+Si2O6
CaⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
CaⓘPargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
CaⓘScheeliteCa(WO4)
CaⓘTitaniteCaTi(SiO4)O
CaⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
CaⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CaⓘWollastoniteCa3(Si3O9)
TiTitanium
TiⓘTitaniteCaTi(SiO4)O
FeIron
FeⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeⓘHedenbergiteCaFe2+Si2O6
FeⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
FeⓘLudwigiteMg2Fe3+(BO3)O2
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPyrrhotiteFe1-xS
FeⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
CuⓘChalcociteCu2S
WTungsten
WⓘScheeliteCa(WO4)

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Chesterman, C.W. (1942) Contact metamorphic rocks of the Twin Lakes region, Fresno County, California. California Division Mines Report 38: 243-281.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 65, 67, 115, 151, 225, 227, 246, 250, 287, 308, 309, 345, 384, 386.
Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 95-105
Pemberton, H. Earl (1983)Minerals of California. Van Nostrand Reinhold Company Inc.
Aleksandrov, S.M. (2007): Endogeneous transformation of kotoite in calciphyres at magnesian-skarn deposits of boron. Geochem. Internat., 45, 666-684.
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