- Material:
- Limestone
- Category:
- Carbonate, Sedimentary
- Alternative name(s):
- Clonmacnoise Crinoidal Limestone, Irish Grey Marble
- Colour:
- Pale to Dark Grey
- Colour variation:
- Mottled
- Grain/Crystal Size:
- Fine
- Place of origin:
- Offaly, Ireland
- Rock Unit Name:
- Waulsortian Limestone
- Geological Age:
- Carboniferous, Dinantian, Tournaisian-Lower Visean
- GSI Rock Unit Code:
- WA
- Related Material (same rock unit):
- Carrigacrump Limestone, Clonony Marble, Cloonagh (Clonagh) Limestone, Clorane (Clorhane) Limestone, Cratloe (Crattloe) Limestone, Donoman (Dunnaman) Limestone, Howth Marble, Kilbreedy Limestone, Limerick Red Marble, Lismore Castle Limestone, Moneen Marble, Muckross Red Marble, Rathkeale (Commons) Limestone, Rynana (Rineanna) Limestone, Saleen Limestone, Shandon Limestone, Tralee Limestone, Tuogh Limestone, Waulsortian Limestone (undifferentiated), Whitechurch Limestone
Notes:
A mottled grey limestone packed with large crinoids in a grey matrix. Longitudional and transverse sections of the fossils result in an attractive appearance, especially when polished. It was extensively worked at the Killaloe Marble Works, to which it were transported by water.References
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