Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Moccasin, New Melones Dam, West Belt, Calaveras Co., California, USA

Oldest recorded age at locality: 100
Youngest recorded age at locality: 100

mindat Locality ID: 272820
mindat URL: http://www.mindat.org/loc-272820.html

Tectonic Settings:

Total number of sublocalities beneath "Moccasin, New Melones Dam, West Belt, Calaveras Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ca Cl Fe H K Na O S Si Ti 

Elements from minerals reported directly at this locality: Al Ca Cl Fe H K Na O S Si Ti 

Structural Groups for minerals in this locality: 
AmphiboleAnalcimeClayCorundumFeldsparMicaNonePyritePyroxeneQuartz
RutileScapoliteSpinelTitanite

13 IMA Minerals at location:
Aegirine  (*)Albite  (*)Analcime  (*)Hematite  (*)Magnetite  (*)
Marialite  (*)Muscovite  (*)Paragonite  (*)Pyrite  (*)Quartz  (*)
Riebeckite  (*)Rutile  (*)Titanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O610010001022
Albite  (*)FeldsparNa(AlSi3O8)10010008803
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O10010001627
Hematite  (*)CorundumFe2O3100100014640
Magnetite  (*)SpinelFe2+Fe3+2O4100100014899
Marialite  (*)ScapoliteNa4Al3Si9O24Cl1001000139
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2100100017380
Paragonite  (*)Mica ClayNaAl2(Si3Al)O10(OH)21001000247
Pyrite  (*)PyriteFeS2100100039462
Quartz  (*)QuartzSiO2100100061156
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)21001000375
Rutile  (*)RutileTiO210010005614
Titanite  (*)TitaniteCaTi(SiO4)O10010004899



1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Mo-00156100100      YesMolybdeniteMo16293Calaveras Co., California, USACalaveras CountyBrock (1972)10.1130/0016-7606(1972)83[3391:GOGHSC]2.0.CO;2GSAB83_3391 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...