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:
Horseshoe Dam Area (Horseshoe Dam Clinoptilolite Occurrence), Maricopa Co., Arizona, USA


mindat Locality ID: 7699
mindat URL: http://www.mindat.org/loc-7699.html

Tectonic Settings:

Total number of sublocalities beneath "Horseshoe Dam Area (Horseshoe Dam Clinoptilolite Occurrence), Maricopa Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 33°57'41"N
Longitude: 111°42'25"W
Decimal Degree (lat, lon): 33.961388888889,-111.70694444444

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 F Fe H K Mg Na O Si 

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

Structural Groups for minerals in this locality: 
AnalcimeApophylliteCalciteChabaziteClayErioniteGyroliteHarmotomeHeulanditeNatrolite
NoneNot in a structural groupSmectite-vermiculite

12 IMA Minerals at location:
Analcime  (*)Calcite  (*)Chabazite-Na  (*)Erionite-K  (*)Gyrolite  (*)
Heulandite-K  (*)Hydroxyapophyllite-(K)  (*)Natrolite  (*)Offretite  (*)Okenite  (*)
Phillipsite-K  (*)Saponite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O01627
Calcite  (*)CalciteCa(CO3)027770
Chabazite-Na  (*)Chabazite(Na3K)[Al4Si8O24]·11H2O066
Erionite-K  (*)ErioniteK10[Si26Al10O72]·30H2O022
Gyrolite  (*)GyroliteNaCa16(Si23Al)O60(OH)8·14H2O0142
Heulandite-K  (*)Heulandite(K,Ca,Na)5(Si27Al9)O72·26H2O032
Hydroxyapophyllite-(K)  (*)ApophylliteKCa4Si8O20(OH,F)·8H2O085
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O01236
Offretite  (*)Not in a structural groupKCaMg(Si13Al5)O36·15H2O0146
Okenite  (*)NoneCa10Si18O46·18H2O071
Phillipsite-K  (*)HarmotomeK6(Si10Al6)O32·12H2O071
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O0301



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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