All example of a mineral occurring as layers in sedimentary rocks is

A. Lignite

B. Gold

C. Lead

D. Tin

Answer: Option A

Solution(By Examveda Team)

All example of a mineral occurring as layers in sedimentary rocks is Lignite. Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content. It has a carbon content around 60-70%.