In the German state of Saxony , the search concluded in 1708 when Ehrenfried Walther von Tschirnhaus produced a hard , white , translucent type of porcelain specimen with a combination of ingredients , including kaolin and alabaster , mined from a Saxon mine in Colditz .
In the German state of Saxony , the search concluded in 1708 when Ehrenfried von Tschirnhaus produced a hard , white , translucent type of porcelain with kaolin clay and alabaster , mined from a Saxon mine in Colditz .