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:
Moel Ysgyfarnogod, Harlech, Gwynedd, Wales, UK


mindat Locality ID: 12734
mindat URL: http://www.mindat.org/loc-12734.html

Tectonic Settings:

Total number of sublocalities beneath "Moel Ysgyfarnogod, Harlech, Gwynedd, Wales, UK": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Llyn Du Bach Mine

Latitude: 52°52'13"N
Longitude: 3°59'43"W
Decimal Degree (lat, lon): 52.870277777778,-3.9952777777778
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 H K Mg Mn Na O Si Ti Zn 

Elements from minerals reported directly at this locality: O Ti 

Structural Groups for minerals in this locality: 
BrookiteCalciteClayGarnetHumiteNoneNot in a structural groupOlivineQuartzSerpentine
Stilpnomelane

11 IMA Minerals at location:
Alleghanyite  (*)Anatase  (*)Brookite  (*)Caryopilite  (*)Franklinphilite  (*)
Kellyite  (*)Quartz  (*)Rhodochrosite  (*)Sonolite  (*)Spessartine  (*)
Tephroite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)2112335477
Anatase  (*)Not in a structural groupTiO202162
Brookite  (*)BrookiteTiO20700
Caryopilite  (*)Clay SerpentineMn2+3Si2O5(OH)4112335483
Franklinphilite  (*)Stilpnomelane(K,Na)4(Mn2+,Mg,Zn)48(Si,Al)72(O,OH)216·6H2O11233543
Kellyite  (*)Clay Serpentine(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4112335411
Quartz  (*)QuartzSiO2112335461156
Rhodochrosite  (*)CalciteMn(CO3)11233541711
Sonolite  (*)HumiteMn2+9(SiO4)4(OH)2112335450
Spessartine  (*)GarnetMn2+3Al2(SiO4)311233541214
Tephroite  (*)OlivineMn2+2(SiO4)1123354240


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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