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Question:

What is the exact definition of slate?

What is the exact definition of slate?

Answer:

English name: slate iron is red or yellow; carbonaceous black or gray; calcium case of hydrochloric acid will bubble
so the general classification of its color, such as green slate, black slate, calcium Slate and so on
Slate can be used as building materials and decorative materials, ancient in the area rich in slate commonly used for tiles. Slate generally does not contain minerals.

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