Why is limestone powder green! What is the content?
The nature of the mineral because it contains a lot of impurities, high purity limestone is white, the color is generally expressed in inclusion characteristics of metal ions which come out, such as copper (compound) is green, containing iron red, usually appear black chromium or manganese. In general.
Mostly illusion.Dry lime powder is very white, just crushed some gray (sometimes feel partial green), to prevent a period of time after drying, or white.
