Here is a n excellent specimen of rare mineral FERBERITE (FeWO4) with SIDERITE. The crystals on this beauty are SHARP and have the TABULAR CRYSTAL HABIT that is characteristic of material from PANASQUIERA, PORTUGAL - - producer of what are arguably the WORLD'S FINEST FERBERITE CRYSTALS. This is a NEW FIND which we picked up from our friend David Zuckerman, who recently stopped in for a visit.