astroite

noun3

1. •
   (no longer used) A radiated fossil or stone; a starstone.

   • The true Astroites, vvhich in the sun-shine throvvs out a brisk light radiating from one certain point, belongs to the class of Pellucids. — 1735
2. •
   (no longer used) A species of petrified madrepore, often found in calcareous stones.
3. •
   (no longer used) A star-shaped echinoderm or marine organism.