Iron oxide can cause yellow to rust colored staining in limestone.
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The compound that causes limestone rock to be yellow in color is iron oxide. Iron oxide can give limestone a yellow or brownish hue due to the presence of iron minerals within the rock.
the colour of Chlorine is green.
The precipitate formed from sodium phosphate and ammonium molybdate is yellow.
yellowIron(II) chloride, also known as ferrous chloride, is the chemical compound of formula FeCl2.FeCl2 crystallizes from water as the greenish tetrahydrate, aqueous solutions of FeCl2 are yellow.
Aqueous chlorine is a yellow-greenish color.
Sulfur is typically a bright yellow color in its solid form.