fine-grained vs small-grained

fine-grained and small-grained both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fine-grained	No	Yes	No	No
small-grained	No	Yes	No	No

As adjectives, fine-grained and small-grained are synonyms defined as:

Other synonyms of fine-grained include powdered, powdery, pulverised, pulverized.

fine-grained (adjective)	small-grained (adjective)
dense or compact in structure or texture, as a wood composed of small-diameter cells	consisting of fine particles
consisting of fine particles