from The Century Dictionary.
- noun A serpentinous mineral occurring embedded in serpentine at Baste in the Harz and elsewhere, and probably derived from the alteration of a variety of enstatite (bronzite).
Sorry, no etymologies found.
In colour bastite is brown or green with the same metallic sheen as bronzite.
Radauthal, Harz, where patches of pale greyish-green bastite are embedded in a darker-coloured serpentine.