Photo - Monarch Stone (Antique European Flagstone)

Monarch Stone (Antique European Flagstone) are

large pieces of concrete with an integrated color. 

They come in both square and rectangular pieces. 

 Antique European Flagstone comes in 5 different colors;

Bristol, Adagio, Yorkshire, Windsor Hills and Roma.

For more information, here are the web pages for both

KRC Rock and Monarch Stone (Coronado Stone).

http://www.coronado.com/
http://www.krcrock.com/uploads/customer_forms/Monarch_Stone_.pdf

Photos provided by Monarch Stone