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:
Avon Diatreme, Ste. Genevieve Co., Missouri, USA

Oldest recorded age at locality: 407
Youngest recorded age at locality: 358

mindat Locality ID: 44231
mindat URL: http://www.mindat.org/loc-44231.html

Tectonic Settings:

Total number of sublocalities beneath "Avon Diatreme, Ste. Genevieve Co., Missouri, USA": 0
Total number of bottom-level sublocalities: 0

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 C Ca Cr Cu Fe H K Mg O Pb S Si Ti Zn 

Elements from minerals reported directly at this locality: Al C Ca Cr Cu Fe H K Mg O Pb S Si Ti Zn 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteClayClinozoisiteDiasporeEpidoteKaoliniteMarcasiteMicaNone
PerovskitePyritePyroxeneQuartzRocksaltSerpentineSphaleriteSpinel

20 IMA Minerals at location:
Antigorite  (*)Augite  (*)Calcite  (*)Chalcopyrite  (*)Chromite  (*)
Diopside  (*)Epidote  (*)Galena  (*)Goethite  (*)Kaolinite  (*)
Magnetite  (*)Marcasite  (*)Muscovite  (*)Perovskite  (*)Phlogopite  (*)
Pyrite  (*)Quartz  (*)Siderite  (*)Sphalerite  (*)Xonotlite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)44073580708
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O640735802060
Calcite  (*)CalciteCa(CO3)407358027770
Chalcopyrite  (*)ChalcopyriteCuFeS2407358027198
Chromite  (*)SpinelFe2+Cr2O440735803902
Diopside  (*)PyroxeneCaMgSi2O640735804135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)40735808173
Galena  (*)RocksaltPbS407358024243
Goethite  (*)DiasporeFeO(OH)40735807437
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)440735805591
Magnetite  (*)SpinelFe2+Fe3+2O4407358014899
Marcasite  (*)MarcasiteFeS240735805674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2407358017380
Perovskite  (*)PerovskiteCaTiO34073580495
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)240735802273
Pyrite  (*)PyriteFeS2407358039462
Quartz  (*)QuartzSiO2407358061156
Siderite  (*)CalciteFe(CO3)40735806417
Sphalerite  (*)SphaleriteZnS407358021482
Xonotlite  (*)NoneCa6Si6O17(OH)24073580109


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
AJS265_848-00008396358377±19K-Ar biotite192B    44231Avon Diatreme, Ste. Genevieve Co., Missouri, USAAvonZartman et al. (1967)10.2475/ajs.265.10.848AJS265_848 
AJS265_848-00009407369388±19K-Ar biotite194B    44231Avon Diatreme, Ste. Genevieve Co., Missouri, USAAvonZartman et al. (1967)10.2475/ajs.265.10.848AJS265_848 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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