Pedra angular

A pedra angular é a última pedra assentada no vértice de um arco ou abóbada, finalizando e equilibrando toda a estrutura.

Não deve ser confundida com a pedra fundamental, que é a primeira pedra de uma construção, geralmente depositada de forma ritualística, marcando a data inicial da construção.

Na arquitetura também é conhecida como 'chave'.

Referências

  1. "Glossary of Medieval Art and Architecture – Keystone". University of Pittsburgh. Retrieved 2007-06-25.
  2. Ching, Francis D.K. (1995). A Visual Dictionary of Architecture. New York: John Wiley & Sons, Inc. p. 12. ISBN 0-471-28451-3
Pedra angular

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