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:
Dolgellau Gold Belt, Gwynedd, Wales, UK


mindat Locality ID: 38498
mindat URL: http://www.mindat.org/loc-38498.html

Tectonic Settings:

Total number of sublocalities beneath "Dolgellau Gold Belt, Gwynedd, Wales, UK": 38
Total number of bottom-level sublocalities: 29

Number of Child Localities: 9
Child Localities:
Barmouth
Bontddu
Coed-y-Brenin Deposit
Dolgellau
Ganllwyd
Llanelltyd
Llanfachreth
Llanuwchilyn
Trawsfynydd

Latitude: 52°48'1"N
Longitude: 3°53'8"W
Decimal Degree (lat, lon): 52.800277777778,-3.8855555555556

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: Ag Al As Au Ba Bi C Ca Co Cu Fe H K Mg Mn Mo Ni O Pb S Sb Si Te Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAragoniteArsenicArsenopyriteBaryteBournoniteBrochantiteCalciteChalcoalumiteChalcophyllite
ChalcopyriteClayClinozoisiteCobaltiteCopperCorundumCovelliteDevillineDiasporeEnargite
EpidoteEttringiteGypsumHalotrichiteMalachiteMarcasiteMicaMolybdeniteNickelineNone
Not in a structural groupPentlanditePyriteQuartzRhodoniteRocksaltRutileSphaleriteStibniteTetradymite
TetrahedriteTyroliteVivianiteWurtzite

70 IMA Minerals at location:
Aleksite  (*)Altaite  (*)Anatase  (*)Anglesite  (*)Ankerite  (*)
Annabergite  (*)Aragonite  (*)Arsenopyrite  (*)Azurite  (*)Baryte  (*)
Bismuth  (*)Bismuthinite  (*)Bornite  (*)Boulangerite  (*)Bournonite  (*)
Brochantite  (*)Calcite  (*)Chalcoalumite  (*)Chalcocite  (*)Chalcophyllite  (*)
Chalcopyrite  (*)Chrysocolla  (*)Clinozoisite  (*)Cobaltite  (*)Copper  (*)
Covellite  (*)Cuprite  (*)Devilline  (*)Dolomite  (*)Enargite  (*)
Erythrite  (*)Galena  (*)Gibbsite  (*)Goethite  (*)Gold  (*)
Gypsum  (*)Halotrichite  (*)Hedleyite  (*)Hematite  (*)Hemimorphite  (*)
Hessite  (*)Hydrozincite  (*)Langite  (*)Mackinawite  (*)Malachite  (*)
Manganite  (*)Marcasite  (*)Matildite  (*)Molybdenite  (*)Monohydrocalcite  (*)
Muscovite  (*)Pentlandite  (*)Pickeringite  (*)Pilsenite  (*)Pyrargyrite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)
Scorodite  (*)Siderite  (*)Sphalerite  (*)Tellurobismuthite  (*)Tennantite-(Fe)  (*)
Tetradymite  (*)Tetrahedrite-(Zn)  (*)Thaumasite  (*)Tyrolite  (*)Wroewolfeite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aleksite  (*)TetradymitePbBi2Te2S2112331528
Altaite  (*)RocksaltPbTe1123315489
Anatase  (*)Not in a structural groupTiO211233452162
Anglesite  (*)BarytePb(SO4)11233452734
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211233453092
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O2123314,123339445
Aragonite  (*)AragoniteCa(CO3)11233203250
Arsenopyrite  (*)ArsenopyriteFeAsS8123315,123319,123320,123329,123333,123337,123345,1233489052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)22123319,1233215509
Baryte  (*)BaryteBa(SO4)112331511547
Bismuth  (*)ArsenicBi11233151966
Bismuthinite  (*)StibniteBi2S32123315,1233451935
Bornite  (*)NoneCu5FeS44123314,123321,123339,1233435516
Boulangerite  (*)NonePb5Sb4S111123315843
Bournonite  (*)BournoniteCuPbSbS311233151089
Brochantite  (*)BrochantiteCu4(SO4)(OH)611233201633
Calcite  (*)CalciteCa(CO3)5123315,123319,123329,123331,12334827770
Chalcoalumite  (*)ChalcoalumiteCuAl4(SO4)(OH)12·3H2O112332091
Chalcocite  (*)NoneCu2S3123320,123321,1233365707
Chalcophyllite  (*)ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24·36H2O1123320194
Chalcopyrite  (*)ChalcopyriteCuFeS216123312,123314,123315,123316,123317,123319,123321,123325,123329,123330,123331,123332,123333,123336,123339,12334327198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O2123320,1233453531
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)11233361025
Cobaltite  (*)CobaltiteCoAsS7123312,123315,123319,123320,123325,123326,123330966
Copper  (*)CopperCu5123315,123320,123321,123329,1233483846
Covellite  (*)CovelliteCuS3123315,123320,1233214165
Cuprite  (*)Not in a structural groupCu2O11233202970
Devilline  (*)DevillineCaCu4(SO4)2(OH)6·3H2O1123320366
Dolomite  (*)NoneCaMg(CO3)24123315,123325,123330,1233489895
Enargite  (*)Enargite WurtziteCu3AsS41123321910
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O5123312,123314,123315,123319,123320814
Galena  (*)RocksaltPbS16123312,123315,123316,123317,123325,123327,123328,123331,123332,123333,123337,123338,123339,123340,123345,12334824243
Gibbsite  (*)NoneAl(OH)31123343504
Goethite  (*)DiasporeFeO(OH)11233317437
Gold  (*)CopperAu22123315,123316,123317,123319,123325,123326,123327,123329,123330,123331,123332,123333,123335,123336,123338,123339,123340,123341,123343,123345,123347,12334830554
Gypsum  (*)GypsumCa(SO4)·2H2O2123320,1233456890
Halotrichite  (*)HalotrichiteFe2+Al2(SO4)4·22H2O1123331409
Hedleyite  (*)TetradymiteBi7Te31123315104
Hematite  (*)CorundumFe2O3112331814640
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O11233451689
Hessite  (*)NoneAg2Te1123315804
Hydrozincite  (*)NoneZn5(CO3)2(OH)611233451066
Langite  (*)NoneCu4(SO4)(OH)6·2H2O2123319,123320593
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)1123326451
Malachite  (*)MalachiteCu2(CO3)(OH)24123314,123320,123321,12333912537
Manganite  (*)RutileMn3+O(OH)1123318770
Marcasite  (*)MarcasiteFeS22123323,1233315674
Matildite  (*)NoneAgBiS21123315252
Molybdenite  (*)MolybdeniteMoS22123315,1233215800
Monohydrocalcite  (*)NoneCa(CO3)·H2O112332055
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2112334817380
Pentlandite  (*)Pentlandite(Ni,Fe)9S811233151512
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O1123331265
Pilsenite  (*)TetradymiteBi4Te3112331557
Pyrargyrite  (*)NoneAg3SbS311233331425
Pyrite  (*)PyriteFeS218123312,123314,123315,123316,123317,123319,123320,123321,123327,123329,123330,123331,123332,123333,123337,123343,123345,12334839462
Pyrrhotite  (*)NickelineFe7S88123312,123315,123317,123319,123320,123331,123345,1233489056
Quartz  (*)QuartzSiO210123314,123315,123319,123320,123329,123335,123339,123340,123345,12334861156
Rhodochrosite  (*)CalciteMn(CO3)11233181711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)2123318,123319969
Scorodite  (*)NoneFe3+(AsO4)·2H2O11233151153
Siderite  (*)CalciteFe(CO3)11233156417
Sphalerite  (*)SphaleriteZnS14123312,123315,123316,123319,123320,123325,123327,123331,123332,123337,123338,123340,123345,12334821482
Tellurobismuthite  (*)TetradymiteBi2Te33123315,123325,123330276
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S132123321,1233221803
Tetradymite  (*)TetradymiteBi2Te2S1123315510
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S134123315,123321,123333,1233395317
Thaumasite  (*)EttringiteCa3Si(OH)6(CO3)(SO4)·12H2O1123343183
Tyrolite  (*)TyroliteCa2Cu9(AsO4)4(CO3)(OH)8·11H2O3123320,123321,123322245
Wroewolfeite  (*)NoneCu4(SO4)(OH)6·2H2O2123320,12334395



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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