| Country | State | Classification | Source | WallNo | Centennial | Commercial | Location | surroundPic |
| United States | Montana | Marble | Helena | 12LB13 | 27090 | n | Front Face (South) | Dscf0407.jpg |
Description |
| dark gray |
| fine grain |
| brecciated |
| dolomite |
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No 12LB13 is:
| Picture of the Archive Stone: |
Actual Picture from the Stone Wall:
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