NF46AH4: Fluorite crystal cubes beveled by the dodecahedron, with fine polycrystalline growths on the cube faces. They are translucent, bright and have a color between deep violet and blue.
The sample is from the mineral collection of Pedro Alves, the author of the article “Vale das Gatas Mining District” in Mineral Up magazine (2017/1). We’ll send the collection label to the buyer.
Vinheiros Mine, level 4, Vale das Gatas mining group, Sabrosa, Vila Real District, Norte Region  Portugal (08/2011)

Specimen size: 3.1 × 2.4 × 2.2 cm = 1.22” × 0.94” × 0.87”