What is a nude stylus tip? A bonded stylus tip? A nude mount? A bushing mount?
Nude stylus tip = the entire stylus tip is the same material, typically diamond.
Bonded stylus tip = the stylus tip consists of two parts bonded (adhered) together. The lower portion is diamond and the upper portion is metal or another type of crystal/stone.
Nude mount = the stylus tip is glued directly into a hole at the end of the stylus shank.
Bushing mount = the stylus tip is glued into a bushing affixed to the stylus shank