villiaumite मीनिंग इन हिंदी

The red spots in the rock are crystals of the rare halide mineral villiaumite ( NaF-sodium fluoride ).
Serandite has been found in association with aegirine, analcime, arfvedsonite, astrophyllite, eudialyte, fluorite, leucophanite, mangan-neptunite, microcline, nepheline, sodalite, and villiaumite.