What do these have in common - a taconite mine in northern Minnesota, the color of your blood, a rusty pail, and yellow or red stains on sinks and plumbing fixtures? The answer is - Iron. Iron is the fourth most abundant mineral in the earth’s crust. Soils and rocks in Minnesota may contain minerals very high in iron, so high in fact, that taconite can be mined for its iron content. Iron gives the hemoglobin of blood it’s red color and allows the blood to carry oxygen. The iron in a metal pail turns to rust when exposed to water and oxygen. In a similar way, iron minerals in water turn to rust and stain plumbing fixtures and laundry.
Source : health.state.mn.us
img Source :mtculligan
Source : health.state.mn.us
img Source :mtculligan
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