Opus spicatum
![Opus spicatum paving in Trajan's Market, Rome.](/Images/godic/202502/12/OpusSpicatumRomaMercatiTraianei0059.jpg")
![Wall in opus spicatum.](/Images/godic/202502/12/Tautenburg20059.JPG")
![Fireplace at Usk Castle](/Images/godic/202502/12/Fireplace_with_opus_spicatum_stonework,_Usk_castle0059.jpg")
Opus spicatum, literally "spiked work," is a type of masonry construction used in Roman and medieval times. It consists of bricks, tiles or cut stone laid in a herringbone pattern.
Spicatum
英语百科
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