The trap rock of Pachami-Hatgacha and adjacent areas of Birbhum district.
| Type of Test | Value |
|---|---|
| Los Angeles Abration value (%) | 11.00 – 15.00 |
| Aggregate Impact value (Dry %) | 4.00 – 7.00 |
| Aggregate Crushing Strength value (%) | 13.00 – 18.00 |
| Sodium Sulphate Soundness value (%) | 0.11 – 0.27 |
| Specific gravity | 2.94 – 3.01 |
© Copyright 2018 | West Bengal Mineral Development and Trading Corporation Limited | All Rights reserved.