At my local beach, iron oxide leaks from the cliffs, and forms orange sand as it trickles onto the beach.
However, aside from around those trickles, the sand is black, as it is mostly (highest concentration in the world) fine dust of pure iron.
How does this happen?
What happens if you breathe the eyeurn dust?
u die.
Deoxidation of iron? What if its just a chromatic effect? More iron oxide builds until the orange hue becomes so dark it appears black?
The sand is magnetic.
>silicone is magnetic
More at 11
It's iron sand you dumb shit
Lower PH prefers deoxidation of iron. And silicates are easily oxidized (duh).
Or to expand on that, it's a net gain in stability if you compare the two half reactions side by side. It's not really odd if you consider that this is a fucking beach and there's water everywhere to allow reactions to take place.
Actually now that I think about it, +4 is already SiO2, so this explanation doesn't actually make any sense.
Must be some other pollution reacting with the iron.