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

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

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%.

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