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how do I tell if I have humic shale clay, and not something similar?

2006-11-23 17:07:33 · 1 answers · asked by sincere12_26 4 in Science & Mathematics ➔ Earth Sciences & Geology

1 answers

pour water on it..
water will not be aborbed , but flow...
and texture must be very hard shiny smooth and dark grey colur

2006-11-23 17:52:02 · answer #1 · answered by Steven A 1 · 0⤊ 0⤋

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