This vanadinite is from Touissit in the Touissit District, Jerada Province, Oriental Region, Morocco. This area contains lead-zinc deposits with 31 different mineral species including vanadinite. It is a phosphate containing the elements Pb, As, V, O and Cl. It is a secondary mineral found in the oxidation zones of the lead deposits. This specimen is an arsenic-rich ( arsenation ) variety of vanadinite that was once called endylictite. It is a double sided plate of large, multi-terminated, and complex crystals. On one side they are vitreous on the other they have secondary mineral deposits. The largest crystals are approx 1/2″ long. The piece measures 1 7/16 x 1 3/16 x 7/8 ” or 37 x 30 x 22 mm.