#nephiline — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #nephiline, aggregated by home.social.
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Now the cool thing about #NephilineSyenite is that yes, there will be a sizeable proportion of silica containing alkali feldspar. #Sodalite, #Nephiline and others, if present, crystallize AFTER the available Si is used up. So they may be vein-filling or adjacent in the matrix. But if they are present, that's definitive for a silica poor source magma. Anyway, VOTE SODALITE! #TeamSodalite #MinCup23