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:
Johnson Co., Tennessee, USA


mindat Locality ID: 130350
mindat URL: http://www.mindat.org/loc-130350.html

Tectonic Settings:

Total number of sublocalities beneath "Johnson Co., Tennessee, USA": 111
Total number of bottom-level sublocalities: 107

Number of Child Localities: 16
Child Localities:
Baker Bank
Butler District
Cobb Creek Prospect
Dowell Quarry
Draught Creek Prospect
Johnson County Phosphate District
Mountain City District
Potter Quarry (Maymead Lime Company; Inc.)
Shady Valley District
Unnamed Iron Prospect (MRDS - 10026405)
Unnamed Iron Prospect (MRDS - 10026406)
Unnamed Iron Prospect (MRDS - 10026407)
Unnamed Iron Prospect (MRDS - 10026408)
Unnamed Iron Prospect (MRDS - 10026409)
Unnamed Iron Prospects 4 (MRDS - 10026404)
Unnamed Sulfide Occurrence (MRDS - 10026413)

Latitude: 36°23'37"N
Longitude: 81°50'43"W
Decimal Degree (lat, lon): 36.393611111111,-81.845277777778
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 Ba C Ca Fe H K Mg Mn Na O P S Si Zn 

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

Structural Groups for minerals in this locality: 
BaryteCalciteClayClinozoisiteCoronaditeCorundumEpidoteFeldsparMicaNone
PyriteQuartzRutileSphaleriteSpinelWavellite

19 IMA Minerals at location:
Albite  (*)Anorthite  (*)Baryte  (*)Calcite  (*)Cryptomelane  (*)
Dolomite  (*)Epidote  (*)Hematite  (*)Hollandite  (*)Magnetite  (*)
Manganite  (*)Microcline  (*)Muscovite  (*)Pyrite  (*)Pyrolusite  (*)
Quartz  (*)Siderite  (*)Sphalerite  (*)Wavellite  (*)
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
Anorthite  (*)FeldsparCa(Al2Si2O8)2267906,2679071036
Baryte  (*)BaryteBa(SO4)3267850,267851,26788211547
Calcite  (*)CalciteCa(CO3)027770
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O164267890,267927,267930,267938599
Dolomite  (*)NoneCaMg(CO3)25267848,267850,267851,267881,2678829895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)08173
Hematite  (*)CorundumFe2O36267949,267950,267951,267952,267953,26795414640
Hollandite  (*)CoronaditeBa(Mn4+6Mn3+2)O161267943243
Magnetite  (*)SpinelFe2+Fe3+2O4014899
Manganite  (*)RutileMn3+O(OH)5267849,267850,267857,267878,267926770
Microcline  (*)FeldsparK(AlSi3O8)04924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Pyrite  (*)PyriteFeS22267851,26795539462
Pyrolusite  (*)RutileMnO211267849,267850,267866,267878,267890,267926,267929,267930,267935,267938,2679433106
Quartz  (*)QuartzSiO23267851,267862,26787861156
Siderite  (*)CalciteFe(CO3)12679356417
Sphalerite  (*)SphaleriteZnS3267848,267851,26787621482
Wavellite  (*)WavelliteAl3(PO4)2(OH)3·5H2O1267862374


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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