black shale (0 synonym found)

We don't have any synonyms for black shale yet.

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black hole  ·  black whale  ·  black snake  ·  black chalk  ·  black sage  ·  black shank

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Definition of black shale:

(n) : (geology) A dark, muddy rock, rich in sulfides and organic material.
Definition of black shale:

(n) : (geology) A dark, muddy rock, rich in sulfides and organic material.
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