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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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 Posted: Mar 06, 2014 10:51 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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Tabular, pale blue baryte crystals to 35mm on calcite, exceptional for the locality and for South Wales. Collected by David Lloyd and Richard Barstow May 1981. Ex Richard Barstow collection.
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Baryte
Blaengwynlais Quarry, Cardiff, South Wales, UK
Baryte crystals to 35mm |
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40112 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Mar 07, 2014 10:53 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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Minute dickite crystals richly covering dolomite. From Pant-y-Gaseg Mine, Anglesey, the type-locality.
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Dickite
Pant-y-Gaseg Mine, Amlwch, Isle of Anglesey, Wales, UK
Specimen 50mm across |
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40144 Time(s) |
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| Pant-y Gaseg adit, driven c1860. The adit crops out half way down a cliff and is very well hidden. Photo taken 8 July 2009. |
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40051 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Mar 08, 2014 13:04 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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A 4mm anatase from the brookite type locality of Twll Maen Grisial in north Wales. Collected in 1984, I've spent a bit of time here over the years.
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Anatase
Twll Maen Grisial, Prenteg, Gwynedd, Wales, UK
crystal 4mm |
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39982 Time(s) |
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James Jones
Joined: 17 Apr 2014
Posts: 24
Location: Paderborn, DE
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| Posted: Apr 20, 2014 07:28 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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Exciting stuff, originally from North Wales myself so its good to hear that there are good minerals to be had.
Will have a look around the Benallt as my family home lies in the shadow of Rhiw Mountain I'm going back this summer to see what my hammer finds :D
Thanks for sharing!
_________________
Geological novice, just embarking on new and exciting adventures in Geology. |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1470
Location: Cambridge
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| Posted: May 21, 2014 14:57 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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One of those Brookites
| Description: |
Brookite
Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd (Caernarvonshire), Wales
Crystals of about 1.5cm
In the Harvard museum |
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39273 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1470
Location: Cambridge
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| Posted: Feb 20, 2018 14:31 Post subject: Re: A mineralogical trip through the regions of the UK - Wales |
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A classic from Wales
| Mineral: | Brookite |
| Locality: | | Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd, Wales / United Kingdom |  |
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| Dimensions: | Crystal of 8mm |
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5765 Time(s) |
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