Connemara marble or "Irish green" is a rare variety of green marble from Connemara, Ireland. It is used as a decoration and building material. Its colour causes it to often be associated with the Iris
The distinct green colour of the middle slab is a result of an abundance of serpentine minerals
Connemara marble ornament, Museum Building, Trinity College Dublin
Verd antique, also called verde antique, marmor thessalicum, or Ophite, is a serpentinite breccia popular since ancient times as a decorative facing stone. It is a dark, dull green, white-mottled serp
Connemara marble
…it to often be associated with the Irish identity, and for this reason it has been named the national gemstone of Ireland. It strongly resembles the verd antique, a green serpentinite breccia found in the Mediterranean. It is named after the region in which it is found (including Lissoughter in Recess, County…
Verd antique column in the Church of Saints Sergius and Bacchus (now the Küçuk Ayasofya Camii) in Istanbul, Turkey (527-536 CE).
Eighteenth century verde antico bust, with an ancient Parian marble head of Agrippina minor, Rhode Island School of Design Museum.
Sixth century verde antico Roman columns in Byzantium's Hagia Sophia