I just so happen to have learned something very cool tonight. Did you know that when you mix very finely ground gold powder with water (a solution called colloidal gold), it ends up looking like this?*
It totally gives me a whole new appreciation for what happened in Exodus 32:20.
[Moses] took the calf that they had made and burned it with fire and ground it to powder and scattered it on the water and made the people of Israel drink it.
*Of course, if the size of the gold particles are not sufficiently small the solution would look a dirty yellow and not blood red. So the question is, was the gold dust Moses used ground finely enough to produce the red color? I’m not sure what the grinding capabilities of the ancient, wandering Israelites were, but I would think that the redox reaction from the fire that the gold was burned in would make it more likely that the proper particle size was achieved.