As nouns the difference between miascite and miassite
is that miascite is (mineralogy) a granitoid rock containing feldspar, biotite, , and sodalite while miassite is .
miascite
English
Noun
(mineralogy) A granitoid rock containing feldspar, biotite, , and sodalite.
(
Webster 1913)
miassite
English
Noun
(mineralogy) An isometric-hexoctahedral gray mineral containing rhodium and sulfur.
References
* Miassite in the Mineralogy Database: [http://webmineral.com/data/Miassite.shtml]