Nephrite as a surface treatment. A lot of nephrite tools and amulets are known since the Early Neolithic (VII mill. BC) to the Late Chalcolithic (V mill. BC) on the Balkans (mainly Bulgaria; also in Greece, Serbia, Croatia) from two or more unknown sources - Balkan "nephrite culture". Such tools are found in the Later Neolithic of Poland (from the most probable local source Jordanów), Sardinia (Italy) (unknown source) and Switzerland (Kostov, 2005; 2013). Single or just a few finds of nephrite artifacts are reported also from some other European countries. During Neolithic times, the key known sources of nephrite jade
The Return of Rock shows. Lewis had also recorded "Live at the Star Club, Hamburg" in 1964, an album that many consider one of the wildest performances ever. Lewis had been touring non-stop since the scandal and his ability to play ferocious rock and roll had remained undiminished in the face of dwindling sales. Hoping to recapture his past success, Lewis and producer Shelby Singleton began work on a new rock and roll album. In the liner notes, Robert Tubert wrote: "Rock is the music which vibrantly records the time in which we live ... and Jerry Lee Lewis is one of its greatest