In mineralogy|lang=en terms the difference between meionite and melonite
is that meionite is (mineralogy) a silicate mineral belonging to the scapolite group while melonite is (mineralogy) a nickel telluride mineral.
As nouns the difference between meionite and melonite
is that meionite is (mineralogy) a silicate mineral belonging to the scapolite group while melonite is (mineralogy) a nickel telluride mineral.