This is a Vanadanite Thumbnail from Mibladen, Morocco. Vanadanite is a member of the apatite group and is formed from the oxidation of certain lead based minerals such as galena. It usually has a hexagonal crystal structure, of which this is a fine example.
This piece measures approximately 2.1cm x 1.8cm x 0.7cm and comes in a perky box that measures 3.5cm x 3.5cm x3.5cm and comes with a display card that lists the mineral name and locale.