This rock is made of fine particles that can't be seen with the hand lens or the naked eye. It feels relatively smooth to the touch. Upon close inspection the rock shows numerous dense layers that measure a fraction of an inch. The rock color varies from brown-ish black to full black. The rock is not shiny and has a dull earthy appearance.
There are no fossils present in the rock. This rock doesn't have a salty taste. This rock can be flamable but if ignited burns for only a short period.
EDUROCK – EDUCATIONAL VIRTUAL ROCK COLLECTION CC BY(4.0) via sketchfab
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