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St Beuno's Church

Gyrn Ddu Porphyry

  • Igneous
  • Porphyry
  • Ordovician

Location Details

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Location of Geological Feature
Main building stone.
Rock Type
Porphyry
Geological Age
Ordovician
Quarry Location
Tan-y-Craig, Clynnog, Gwynedd, North Wales
Category
Igneous
Nearest station
Bangor
Address
5 St Beunos Court, Clynnog-Fawr LL54 5NP
Date of build
15th Century
Find out more
Stone identified by Ruth Siddall
St Beuno's Church — Gyrn Ddu Porphyry
Gyrn Ddu Porphyry at St Beuno's Church
Gyrn Ddu Porphyry at St Beuno's Church (detail 2)
Gyrn Ddu Porphyry at St Beuno's Church (detail 3)
    Entry submitted by Ruth Siddall

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