A gemmy apatite crystal specimen from Panasqueira is on almost every collector's list, as it is arguably the finest ever found.  This crystal is very sharp and gemmy, double terminated, with one great, glassy, smooth termination, striated sides, and crisp, straight edges.  Inside the crystal are multiple phantoms, the result of color zoning – an unusual trait for this locality.  The color is a lovely yellow-green, and the crystal has a glassy luster.  The back side and the bottom termination are partially obscured by small siderite crystals.