Heroes, help me see if this is quartz sand or kaolin? Is it valuable?
The iron content is a little high, but everything else is good. Besides the iron, the glass material can be made, and the man-made stone can be made
With the above coating will be very fine of 600, 800, less is known regarding the paint application; glass quartz sand in general about 140 items, including water glass, in the East China area for water glass quartz sand price is 400~600 yuan; can also be directly or directly sold to dozens of pieces (ceramic factory the added value is not high), direct selling feel a little waste of resources.
Whiteness is very high, belongs to quartz sand, sand surface may be attached to kaolin, if any, scrub, removing impurities can be purified to the silicon dioxide content of 99.9%, then it will crush value high, deep processing of quartz is mainly scrubbing, impurity removal and grinding.
It's quartz sand. The aluminum content of kaolin is very high, at least above forty percent
