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Thread: American Slate

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    The Hurdy Gurdy Man thebigspendur's Avatar
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    Slate is shale that has undergone metamorphism. The particle size defines slate and there is usually minor differences between one slate and another which is why they come in a variety of colors from red to grey and in between. If the particle size is different you don't have shale to begin with, maybe mudstone or siltstone depending on the micron size of the particles.
    Suile likes this.
    No matter how many men you kill you can't kill your successor-Emperor Nero

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    Suile (10-07-2012)

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