Research Article
Petrography and Physicomechanical Properties of Rocks from the Ambela Granitic Complex, NW Pakistan
Table 3
Comparison of petrographic characteristics of the studied rocks.
| Rock type | Megaporphyritic alkali granite | Microporphyritic alkali granite | Megaporphyritic alkali quartz syenite | Nepheline syenite |
| Phenocryst grain size | Very coarse grained | Medium grained | Very coarse grained | Medium grained | Groundmass grain size | Fine | Fine | Very fine | Fine | Phenocryst modal abundance | 90% | 90% | 60% | 50% | Phenocryst shape | Regular to irregular | Regular to irregular | Highly irregular | Irregular |
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