fine-grained vs powdery

fine-grained and powdery both are adjectives.

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

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

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

fine-grained (adjective)	powdery (adjective)
dense or compact in structure or texture, as a wood composed of small-diameter cells	consisting of fine particles
consisting of fine particles	as if dulled in color with a sprinkling of powder