They are a combination of corrosion products from the system - such as various oxides of iron, and precipitated salts from the water. The typical precipitate is the highly insoluble calcium carbonate...
When water converts into steam conc of dissolved salt inc, after reaching a saturation level the salts are thrown out in form of ppts. This is sludge.while scale is a hard and adherent deposit on the...
To turn a major scale to natural minor, lower the third, sixth, and seventh scale tones a half step. To create a natural minor scale from scratch, it is:whole step, half step, whole step, whole step,...