Rubble (stone)
Squared stone used in walling, usually uncoursed, not finely dressed as ashlar.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Squared stone used in walling, usually uncoursed, not finely dressed as ashlar.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM