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Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd (Caernarvonshire), Wales, UK

Anatase
Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd, Wales, UK

Photo: Peter Haas
UK Grid Reference: SH582410
Latitude: 52°56'50"N
Longitude: 4°6'38"W
Brookite from this location was originally referred to as being from "near Snowdon" by Sowerby (1809), but this was later confirmed by Sowerby (1838) to be Prenteg. Also incorrectly called "Fonolen" by Greg and Lettsom (1858) and elsewhere described as "8 miles from Snowdon, between Beddgelert and Tremadoc".

References

- Starkey, R.E. and Robinson, G.W. (1992). "Famous mineral localities: Prenteg, Tremadog, Gwynedd, Wales." Mineralogical Record, 23(4), 391-399.

Mineral List

Albite
Anatase
Brookite (TL)
Calcite
Chamosite
Endellite
Fluorapatite
Galena
Goethite
Halloysite
Ilmenite
Monazite-(Ce)
Pyrite
Quartz
Rutile
Titanite


16 entries listed. 14 valid minerals. 1 type locality (valid mineral).

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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