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8, Shirehall Street

Hornblende Granite

  • Igneous
  • Granodiorite
  • Caledonian

Location Details

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Location of Geological Feature
Main building stone. The hornblende-bearing grey granodiorite is widely used in Caernarfon, it is not a local stone and was probably brought in as ballast for the slate ships. It is very similar to both Irish Newry Granodiorite and Scottish granodiorite from the Criffell Intrusion.
Rock Type
Granodiorite
Geological Age
Caledonian
Quarry Location
Castlewellan, Co. Down, Northern Ireland or Dalbeattie, Dumfries & Galloway, Scotland
Category
Igneous
Nearest station
Bangor
Address
8, Shirehall Street LL55
8, Shirehall Street — Hornblende Granite
Hornblende Granite at 8, Shirehall Street
Hornblende Granite at 8, Shirehall Street (detail 2)
    Entry submitted by Ruth Siddall

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