es·so·nite 
(ĕsə-nīt′) also hes·so·nite (hĕs-)
(ĕsə-nīt′) also hes·so·nite (hĕs-)n.
A brown or yellowish-brown variety of garnet. Also called cinnamon stone.
[French, from Greek hēssōn, inferior (from its being softer than true hyacinth), comparative of ēka, hēka, slightly.]