Andesite has a medium-grained texture, meaning its mineral crystals are visible to the naked eye but are generally small.

Here's a more detailed breakdown of andesite's texture:

* Porphyritic: This is the most common texture for andesite. It features larger crystals (phenocrysts) embedded in a finer-grained groundmass. The phenocrysts are often plagioclase feldspar, pyroxene, or hornblende.

* Aphanitic: This texture is less common and indicates a very fine-grained, almost glassy appearance. The individual crystals are too small to be seen without magnification.

* Vesicular: Some andesite can contain gas bubbles, creating a vesicular texture. These bubbles are typically small and randomly distributed.

The texture of andesite can vary depending on its cooling history. Rapidly cooled andesite tends to have a finer-grained texture, while slowly cooled andesite will have larger crystals.