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Tornado Crystal Stone
Physical and chemical analysis:
| OPTIMAL AMOUNT | COMPRESSIVE STRENGTH | ABRASION RESISTANCE | POROSITY | SPECIAL WEIGHT | WATER ABSORPTION |
| MIN | 600 | 2.20 | Petty | 1.80 | 0.03 |
| MAX | 2200 | 6 | 2.50 | 2.80 | 1.50 |
| TORNADO CRYSTAL | 1200 | 3 | 0.17 | 2.74 | 0.18 |
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Physical and chemical analysis:
| OPTIMAL AMOUNT | COMPRESSIVE STRENGTH | ABRASION RESISTANCE | POROSITY | SPECIAL WEIGHT | WATER ABSORPTION |
| MIN | 600 | 2.20 | Petty | 1.80 | 0.03 |
| MAX | 2200 | 6 | 2.50 | 2.80 | 1.50 |
| TORNADO CRYSTAL | 1200 | 3 | 0.17 | 2.74 | 0.18 |