translation please bergler , page-8

I have never considered that the Feldspar from AD would be for anything other than for bulk use by the Italian ceramic industry (ie for tiles and related production).

The ceramic used for dielectrics in capacitors is much more about the high-tech processes required to reach the required level of purity - much like the vast difference between the 'grown' silica used for integrated circuit manufacture and builders sand!!

As I understand it, the AD Feldspar is ideal for tiles, etc, because of the absence of Titanium and other impurities which would otherwise have to be dealt with in order to achieve the desired colours in the finished product.
CPDLC