• (n.) A variety of black limestone, often polished for ornamental purposes.
Lu·cul'lite noun [ From Lucullus , a Roman consul, famous for his great wealth and luxury: confer French lucullite .] (Min.) A variety of black limestone, often polished for ornamental purposes. 
Lucullite, named after Lucullus, a Roman consul, famous for his great wealth and Luxury, is a variety of black limestone, often polished for ornamental purposes.