This occurence of Pargasite was once thought to be fluor-cannilloite, much rare mineral. But in this case all you get is this bright apple green crystals of Pargasite. Pargasite is normally a dull, ugly greyish green. The largest crystals is 1.2cm. Marble matrix.
Pargasite
Formula
NaCa2(Mg4Al)(Si6Al2)O22(OH)2
Crystal System
Monoclinic
Crystal Habit
Tabular
Cleavage
Perfect, Perfect, None
Luster
Vitreous (Glassy)
Color
bluish green, brown, grayish black, light brown, dark green