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:
Corundum Hill, Franklin, Ellijay District, Cowee Valley, Macon Co., North Carolina, USA


mindat Locality ID: 277413
mindat URL: http://www.mindat.org/loc-277413.html

Tectonic Settings:

Total number of sublocalities beneath "Corundum Hill, Franklin, Ellijay District, Cowee Valley, Macon Co., North Carolina, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Culsagee Mine

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 Cr Fe H K Mg Na Ni O Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleChloriteClayCorrensiteCorundumDiasporeFeldsparMicaNone
Not in a structural groupPyroxeneQuartzRutileSerpentineSmectite-vermiculiteSpinelStauroliteTalc

24 IMA Minerals at location:
Actinolite  (*)Albite  (*)Anthophyllite  (*)Arfvedsonite  (*)Chromite  (*)
Chrysotile  (*)Clinochlore  (*)Corundum  (*)Diaspore  (*)Enstatite  (*)
Hydrobiotite  (*)Magnetite  (*)Margarite  (*)Népouite  (*)Opal  (*)
Preiswerkite  (*)Quartz  (*)Rutile  (*)Sillimanite  (*)Spinel  (*)
Staurolite  (*)Talc  (*)Tremolite  (*)Vermiculite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)212513283419
Albite  (*)FeldsparNa(AlSi3O8)12513288803
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)21251328718
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)21251328295
Chromite  (*)SpinelFe2+Cr2O412513283902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41251328951
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)812513281756
Corundum  (*)CorundumAl2O312513281797
Diaspore  (*)DiasporeAlO(OH)1251328481
Enstatite  (*)PyroxeneMg2Si2O61251328944
Hydrobiotite  (*)Corrensite ClayK(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O125132849
Magnetite  (*)SpinelFe2+Fe3+2O4125132814899
Margarite  (*)Mica ClayCaAl2Si2Al2O10(OH)21251328168
Népouite  (*)Serpentine ClayNi3Si2O5(OH)4125132866
Opal  (*)AmorphousSiO2·nH2O12513282994
Preiswerkite  (*)MicaNaAlMg2(Si2Al2)O10(OH)2125132814
Quartz  (*)QuartzSiO2125132861156
Rutile  (*)RutileTiO212513285614
Sillimanite  (*)Not in a structural groupAl2SiO512513281516
Spinel  (*)SpinelMgAl2O412513281934
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)1251328978
Talc  (*)Clay TalcMg3Si4O10(OH)212513283337
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)212513282562
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O1251328652


No ages have been assigned to this locality yet.
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