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What is the basic visual difference between slate and phyllite?

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Final answer:

Phyllite metamorphoses from slate forming larger mica crystals and a sheen, while slate has smaller crystals and lacks a sheen.


Explanation:

Phyllite is a metamorphic rock that forms from slate undergoing further metamorphism at higher temperatures, resulting in larger mica crystals giving it a sheen.

Slate, on the other hand, is a fine-grained metamorphic rock with small platy crystals of mica and chlorite that exhibit a foliation called slaty cleavage.

The main visual difference between slate and phyllite lies in the sheen present in phyllite due to larger mica crystals, while slate lacks this sheen and has smaller crystals.


Learn more about Metamorphic rocks here:

https://brainly.com/question/19930528


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