“A tabular crystal, tetragonal, with broad-based, with bipyramid and prism faces, colorless and very transparent; the flesh-pink color is due to the reflection of the color of the crystals of analcime on which is implanted the apophyillite. On the right, a clear yellow crystal of datolite. Collection and Photo of Gianfranco Ciccolini.”

“A tabular crystal, tetragonal, with broad-based, with bipyramid and prism faces, colorless and very transparent; the flesh-pink color is due to the reflection of the color of the crystals of analcime on which is implanted the apophyillite. On the left, a clear yellow crystal of datolite. Collection and Photo of Gianfranco Ciccolini.”