buff sandstone, cut, natural cleft face, roughly parged and tuckpointed
as found in barn/shed in rural Boulder, Colorado
stone, sandstone and granite mix
dry stacked, rubble style
as seen in Central City, Colorado
stone, black river rock pebbles
set in mortar as walking surface
as seen at the labyrinth, New Harmony, Indiana
stone, buff sandstone, cut smooth
rectangular ashlar pattern, 2:1 ratio
as seen on the Boulder County Courthouse
stone, natural sandstone, color: Berthoud pink mix, natural cleft finish
gray mortar, tooled 3/8″ joints, 3:1 ratio
Berthoud mix is reddish pink, ranging to golden, sandstone found in eastern Colorado
red sandstone, rough cut, rusticated
vertical ashlar pattern, 2:1 ratio
3/8″ gray mortar joints, flush
natural stone, Oklahoma brown, rectangular bedded, 3:1 max ratio
qualities: brown to golden, fairly brittle