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| CSI Code | Short Description | Extended Description |
| 04400 | Stone |
| 04410 | Stone Materials | Bluestone Granite Limestone Marble Quartzite Sandstone Slate |
| 04420 | Collected Stone | Excavated Stone Field Stone Riverbed Stone |
| 04430 | Quarried Stone | Cleft - Face Stone Crushed Stone Dimension Stone |
