Cregenen (Cregennen), Arthog, Gwynedd, Wales, UKi
| Regional Level Types | |
|---|---|
| Cregenen (Cregennen) | - not defined - |
| Arthog | Community |
| Gwynedd | County |
| Wales | Country |
| UK | Country |
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Latitude & Longitude (WGS84):
52° 42' 37'' North , 3° 59' 2'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SH645145
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fairbourne | 721 (2017) | 5.1km |
| Barmouth | 2,315 (2017) | 5.2km |
| Dolgellau | 2,688 (2017) | 7.5km |
| Llwyngwril | 526 (2017) | 8.3km |
| Dyffryn Ardudwy | 1,654 (2012) | 9.2km |
Other/historical names associated with this locality:
Merionethshire
Granophyre intrusion, in a context of greenschist facies Fe-rich Ordovician metabasite intrusions.
Bloxham & Price, 1961 Described stipnomelane from the Cregenan intrusion exposed near Arthog as forming sharply terminated laths arranged either as radiating sheafs or as "bow-tie" aggregates.
NB: Ordnance Survey grid ref.is for the hamlet of Arthog mentioned above and is not a specific mineral locality.I have set the Mindat icon on the largest Cregennen lake.
NB: Cregenen is a set of 2 small connected lakes on the lower slopes of Cader Idris. There are also 2 small peaks, the first, 279 above sea level called Pen Llynnau Cregennen and the second, 280 meters high, called Bryn-y-Gregennen.( do not know if this is a spelling error ) However the OS maps spell the lake as Cregennen and the mountain as Cadair Idris. Cadair Idris means "the chair of Idris" in Welsh. The anglicised form Cader Idris is often found, particularly in older English-language sources, but not exclusively so; indeed, it is frequently used by Welsh speakers, even those local to the area. However, Cadair Idris is the form used on modern maps and by most respected authors, and many Welsh speakers regard Cader as incorrect.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ 'Chlorite Group' |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Stilpnomelane Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| ⓘ Titanite Formula: CaTi(SiO4)O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Stilpnomelane | 9.EG.40 | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| O | ⓘ Titanite | CaTi(SiO4)O |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| K | Potassium | |
| K | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- AvaloniaVolcanic Arc
EuropeContinent
UK
- Wales
- Cambrian MountainsMountain Range
- Snowdonia National ParkNational Park
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Cregenen, Arthog, Gwynedd, Wales, UK