Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Dolomite Orbisonia 12LA9 26204 y Front Face (South) Dscf0405.jpg
No 12LA9 is:

Description

nearly black
fine grain
compact
Lower Silurian


ARCHIVE STONE NOT AVAILABLE

Actual Picture from the Stone Wall: /mid2000/12la9.jpg (63575 bytes)