The small rough crystals of blue Sapphire are about 1 - 2cm in size.
Per VE (=packing unit) with 50g you will receive approx. 6 to 8 rough sapphire stones; these are mostly elongated and have a hexagonal cross-section.
Strengthening of mental power and perspicacity are the classical themes where blue Sapphires are used due to their effect. The mineral can lead to an unshakable inner peace.
Sapphire is blue corundum.