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Specifications & Physical Properties
| Type 2 | Type 3 | Type 5 | |
| Hardness: | |||
| Mohs | 3.5 | 4.0 | 3.5 |
| Barcol | 54 - 62 | 64 - 72 | 46 - 54 |
| Specific Gravity: | 1.5 | 1.52 | 1.2 |
| Apparent Density: | 0.7 - 0.8 | 0.7 - 0.8 | 0.6 - 0.7 |
| Color: | Mixed | Mixed | Mixed |
| Particular Shape: | Multiple Sharp Edges | Multiple Sharp Edges | Multiple Sharp Edges |
| Operating Temperature: | 0° - 290°F | 0° - 290°F | 0° - 290°F |
| Flammability: | Non-Flammable | Non-Flammable | Flammable |
| Ignition Temperature: | 530°C | 530°C | 435°C |
| Moisture Content: | < 0.05% | < 0.05% | < 0.05% |
| pH at Room Temp In Distilled Water: | Neutral | Neutral | +1% |