Must the purple sand pot have quartz and mica?
Yes, quartz and mica can be seen on either the finished clay or the pot.
The iron content of purple clay and quartz sand processing soil contains high plasticity, very good. After drying shrinkage, the shrinkage rate from 8%-30%, the firing range, the main chemical composition of silicon oxide, alumina, calcium oxide, manganese oxide, potassium oxide, Magnesium Oxide.
The main minerals of purple sand mud are quartz, clay, mica and hematite. These minerals belong to Clay quartz mica system.
