Applied to a texture of metamorphic rocks in which the constituent mineral grains lack proper crystal faces.

What is Xenoblastic?

: a crystal in metamorphic rock that is not bounded by its own faces but has its outlines impressed upon it by neighboring crystals —contrasted with idioblast.

Which rock shows Blasto porphyritic texture?

) Blastoporphyritic texture - if original porphyritic texture of igneous rock still preserved after metamorphism. (Figure 1- Blastoporphyritic texture in metabasalt showing plagioclase and amphibole phenocrysts, pyroxene is completely replaced by clusters of amphibole.)