Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Gneiss Philadelphia 6LB18 25551 y Front Face (South) Dscf0120.jpg
No 6LB18 is:

Description

dark gray
fine grain
hornblende


Picture of the Archive Stone:
/archive/front/6lb18.jpg
Actual Picture from the Stone Wall: /mid2000/6lb18.jpg (63575 bytes)