What rock type would be made mostly from particles 1/256 mm and has lots of thin flat laminae and a reddish colour?

Name: What rock type would be made mostly from particles 1/256 mm and has lots of thin flat laminae and a reddish colour?
Brand: Quizplus
Rating: 4.9 (46 reviews)

Question

Quizplus · Accepted Answer

Ferruginous shale is the correct answer because it is characterized by its thin, flat laminae and reddish color, which is indicative of iron oxide content. The size of the particles (1/256 mm) aligns with the fine-grained nature typical of shale.

What Rock Type Would Be Made Mostly from Particles 1/256