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:
Mesa Grande, Mesa Grande District, San Diego Co., California, USA


mindat Locality ID: 209418
mindat URL: http://www.mindat.org/loc-209418.html

Tectonic Settings:

Total number of sublocalities beneath "Mesa Grande, Mesa Grande District, San Diego Co., California, USA": 14
Total number of bottom-level sublocalities: 13

Number of Child Localities: 12
Child Localities:
Black Canyon Deposit
Damarons Ranch
Esmeralda Mine
Lake Henshaw
Old Ironsides Prospect
Patton Beryl Prospect (Beryl Ores Millsite)
Rose Quartz Mine (Patton Lode; Patten Lode; Powers Group; Crystal Quartz; White Quartz; Sante Fe Gem)
Shenandoah Mine (Mesa Grande Mine; Ida Mae Mine; Ida May Mine)
South Of Mesa Grande
Trail Mine
Wild Cat Claim
WNW Of Mesa Grande

Latitude: 33°11'28"N
Longitude: 116°48'8"W
Decimal Degree (lat, lon): 33.191111111111,-116.80222222222
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 Be Cu Fe H K Li Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BerylChalcopyriteChloriteClayFeldsparMicaNickelineNoneNot in a structural groupPyrite
PyroxeneQuartzTourmaline

13 IMA Minerals at location:
Albite  (*)Beryl  (*)Chalcopyrite  (*)Cookeite  (*)Elbaite  (*)
Muscovite  (*)Orthoclase  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Schorl  (*)Sillimanite  (*)Spodumene  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)2174818,1748278803
Beryl  (*)BerylBe3Al2Si6O183174818,174824,1748274286
Chalcopyrite  (*)ChalcopyriteCuFeS2117482227198
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)81174818181
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)1174827520
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22174818,17482717380
Orthoclase  (*)FeldsparK(AlSi3O8)2174818,1748242349
Pyrite  (*)PyriteFeS2117482239462
Pyrrhotite  (*)NickelineFe7S811748229056
Quartz  (*)QuartzSiO24174818,174824,174827,17482961156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)3174818,174824,1748272705
Sillimanite  (*)Not in a structural groupAl2SiO511748261516
Spodumene  (*)PyroxeneLiAlSi2O61174818688


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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