Answer :

The larger crystals are called phenocrysts, and the matrix of smaller crystals is termed the ground mass.

The answer is: Porphyritic

Porphyritic texture refers to collection of crystals in which one of the crystal is significantly larger compared to the rest of the crystals. The crystals thend to have fine-grained groundmass but non-visible crystal. This type of texture tend to be created when a magma expelled by a volcano is  cooled slowly deep in the crust

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