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:
Stone Mountain-Lithonia District, DeKalb Co., Georgia, USA


mindat Locality ID: 27901
mindat URL: http://www.mindat.org/loc-27901.html

Tectonic Settings:

Total number of sublocalities beneath "Stone Mountain-Lithonia District, DeKalb Co., Georgia, USA": 11
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Block Quarry
Britt Quarry
Coffey Quarry
Ethel Quarry
Flat Rock Quarry
Hayne Quarry
Kellogg Quarry
Powell Quarry
Rock Bridge Road
Venable Estate Quarries
Wells Quarry

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 Be Ca Cu F Fe H K Mg Mo Na Nb O P S Si U Y 

Elements from minerals reported directly at this locality: Al Ca Cu F Fe H K Mg Mo Na Nb O P S Si Y 

Structural Groups for minerals in this locality: 
AllophaneAmorphousAmphiboleBerylChloriteClayColumbiteEpidoteFeldsparFluorite
KaoliniteLazuliteMicaMolybdeniteNoneQuartzZircon

20 IMA Minerals at location:
Albite  (*)Allophane  (*)Beryl  (*)Chrysocolla  (*)Clinochlore  (*)
Cummingtonite  (*)Fluorite  (*)Gibbsite  (*)Halloysite-10Å  (*)Kaolinite  (*)
Lazulite  (*)Microcline  (*)Molybdenite  (*)Muscovite  (*)Opal  (*)
Quartz  (*)Samarskite-(Y)  (*)Uranophane-α  (*)Xenotime-(Y)  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)08803
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O0470
Beryl  (*)BerylBe3Al2Si6O1812014574286
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O03531
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)801756
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)20327
Fluorite  (*)FluoriteCaF209617
Gibbsite  (*)NoneAl(OH)30504
Halloysite-10Å  (*)Clay KaoliniteAl2Si2O5(OH)4·2H2O062
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)405591
Lazulite  (*)LazuliteMgAl2(PO4)2(OH)21201455232
Microcline  (*)FeldsparK(AlSi3O8)04924
Molybdenite  (*)MolybdeniteMoS205800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Opal  (*)AmorphousSiO2·nH2O3201452,201453,2014542994
Quartz  (*)QuartzSiO2061156
Samarskite-(Y)  (*)ColumbiteYFe3+Nb2O80353
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O4201450,201452,201453,201454890
Xenotime-(Y)  (*)ZirconY(PO4)0939
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12014521025


No ages have been assigned to this locality yet.
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