mold or rust
when copper is put with water it turns green like the statue of liberty it is actually a browny bronze colour but when water and other chemicals react with it, it chages colour to a green colour
a green one
The dihydrated salt is blue-green.
Why does copper sulfate change its colour when water is added
The colour of silver metal in water is whiteThe colour of copper nitrate in water is blue (due to the Cu++ ion).
Copper Sulfate won't give green smoke, you can better use "Methylene blue" for blue smoke.
The copper reacts with the oxygen in water to form copper oxide and hydrogen ions. This is copper oxide is a green compound.
Copper sulphate's colour is blue.
Assuming they are dissolved in water the mixture turns green. Presumably the copper and chloride associate and the sodium and sulphate remains clear. The cystalised substance remains green although the colour deepens when it is dry.
blue
It isn't the chlorine. Copper in the water is absorbed by the hair, when the hair is washed; the copper oxidizes & turns green
There is a high copper concentration in your area and the copper that is dug up has corroded into the green sediment you see in the water.