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| Property |
Value |
| Absorption |
1.21% |
| Compressive strength across strata |
18,255 lb/in2 |
| Compressive strength with strata |
12,388 lb/in2 |
| Flexural strength across strata |
2,977 lb/in2 |
| Flexural strength with strata |
2,180 lb/in2 |
| Abrasion (Thermal face) |
28.2 |
| Abrasion (Natural cleft) |
11.2 |
| Specific gravity |
2.604 |
| Weight per cubic foot |
162.5 lbs |

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