ge·ode /ˈʤiˌod/
晶洞,異質晶簇
Ge·ode n. Min. (a) A nodule of stone, containing a cavity, lined with crystals or mineral matter. (b) The cavity in such a nodule.
◄ ►
geode
n : (mineralogy) a hollow rock or nodule with the cavity usually
lined with crystals