* Crystalline: This texture is characterized by interlocking crystals that have grown together. You can often see individual crystals, and the rock feels hard and solid. Examples include granite, basalt, and marble.

* Clastic: This texture is characterized by fragments of other rocks (called clasts) that have been cemented together. The clasts can be of different sizes and shapes. The rock feels rough and porous. Examples include sandstone, conglomerate, and shale.

It's important to note that these are the two main categories of rock texture, and within each category, there are many variations. For example, crystalline rocks can have different crystal sizes (coarse-grained vs. fine-grained) and different crystal shapes (equigranular vs. porphyritic).