Final answer:
Aphanitic is the texture that requires a magnifying glass or microscope to see individual mineral grains.
Step-by-step explanation:
The texture that requires a magnifying glass or microscope to see individual mineral grains is aphanitic. Aphanitic rocks have fine-grained textures where the mineral grains are too small to be seen without the aid of magnification. These rocks often have a uniform appearance and lack visible crystals.