Break a flint that's fresh out of the chalk and it's black. What gives it its colour?
2006-07-12 05:02:31 · 4 answers · asked by schming2005 1 in Science & Mathematics ➔ Earth Sciences & Geology
Not true.
Most flint is grey or brown. The flints that I get from France are white. I've even seen some that look blue.
To my knowledge, science isn't entirely sure how flint is formed, so I can't say where the color comes from. One theory is that some kind of gelatinous ooze filled cracks and channels in sedimentary rock and became silicified. Depending on the particulate matter and sediment that the ooze picked up, I guess that would dictate the color.
2006-07-12 05:11:30 · answer #1 · answered by jkk109 4 · 1⤊ 0⤋
oxidation
2006-07-12 12:06:29 · answer #2 · answered by mityaj 3 · 0⤊ 0⤋
carbon
2006-07-12 12:05:30 · answer #3 · answered by Anonymous · 0⤊ 0⤋
moisture.
2006-07-12 12:05:29 · answer #4 · answered by full_tilt_boogie 4 · 0⤊ 0⤋