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Stone description: Porphyritic
| Wall Number | Country | State | Classification | Source Sort descending |
|---|---|---|---|---|
| 11RB40 | United States | Wisconsin | Quartz | Brandon |
| 7LB23 | United States | North Carolina | Quartz | Charlotte |
| 7RA24 | United States | Maine | Granite | Crotch Isl. |
| 8RB27 | United States | Maine | Granite | Dedham |
| 6rb32 | United States | Colorado | Granite | Georgetown |
| 1L6 | Canada | Granite | Halifax Co. | |
| 7LB41 | United States | Montana | Granite | Lewis & Clark Co. |
| 10RB49 | United States | Wisconsin | Quartz | Marquette |
| 5LA27 | Austria | Quartz | South Tyrol | |
| 5RB28 | Austria | Quartz | South Tyrol | |
| 7LB36 | United States | Nevada | Andesite | Virginia City |