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Iron dust from ore, into water.

LOG

LOG

Lagrangian
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Okay, if water is travelling down a mountain, and there's an iron ore deposit within the ground it's travelling over, can the water erode the ore so that at some point, the particles from the ore give the water a slight reddish tint? (Assuming it's reddish iron ore, like what you find in the Sudan mines.
 
Xelebes

Xelebes

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I believe there is a place in Spain where this phenomenon occurs. It's in the dryer areas, I think.
 

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Absolutely. You don't actually even need a mineable ore deposit. More common is the weathering of iron sulfide (the common mineral pyrite, FeS2) under surface conditions to produce iron oxide (Fe2O3) along with sulfuric acid. This is a frequent source of water pollution from mine tailings, and rusty water is the major obvious symptom. Iron sulfide occurs commonly with other metal sulfides, of things like copper, molybdenum, lead and zinc, which are used as ores of those metals.

caw
 
Gary

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My house is built on a hill that contains iron ore and I can assure you the water turns a rusty pink color.
 
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