A smooth surface to the face of the stone.
 Copper |
 Atomic Grey
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 Copper
|
 Ocean Green
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Slate is a metamorphic rock, usually formed from clay sediments or shale that has been heated and put under pressure. Slate can be black, gray, brownish red, bluish gray, or greenish gray. It is very fine grained and has thin, quite smooth, flat layers and easily splits into thin flat pieces.
