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:
Alpine, Laguna Mts, San Diego Co., California, USA

Oldest recorded age at locality: 110
Youngest recorded age at locality: 106

mindat Locality ID: 221466
mindat URL: http://www.mindat.org/loc-221466.html

Tectonic Settings:

Total number of sublocalities beneath "Alpine, Laguna Mts, San Diego Co., California, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Dehesa Dumortierite Deposit (Lehesa Dumortierite Deposit)
Harvey Ranch Deposit (Echo)
McCullough Deposit (Unnamed Sillimanite Occurrence)
Old Noble Mine
Unnamed Sn Claim
Viejas Mountain Prospect
Wettleson Prospect

Latitude: 32°49'41"N
Longitude: 116°45'49"W
Decimal Degree (lat, lon): 32.828055555556,-116.76361111111

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 B Ca H K Mo O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ClayCorundumDumortieriteMicaMolybdeniteNoneNot in a structural groupQuartzRutileTitanite

8 IMA Minerals at location:
Corundum  (*)Dumortierite  (*)Molybdenite  (*)Muscovite  (*)Quartz  (*)
Rutile  (*)Sillimanite  (*)Titanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Corundum  (*)CorundumAl2O311746571797
Dumortierite  (*)DumortieriteAlAl6BSi3O181174657231
Molybdenite  (*)MolybdeniteMoS211746585800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2117465717380
Quartz  (*)QuartzSiO2117465761156
Rutile  (*)RutileTiO211746575614
Sillimanite  (*)Not in a structural groupAl2SiO52174657,1746591516
Titanite  (*)TitaniteCaTi(SiO4)O11746574899



2 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
NAVDAT-126231110106108±2   126231    221466Alpine, Laguna Mts, San Diego Co., California, USA NAVDAT NAVDAT 
NAVDAT-126230110106108±2   126230    91488Old Noble Mine, Alpine, Laguna Mts, San Diego Co., California, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


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