An excellent cabinet specimen of sharp, lustrous and translucent halite crystals from Poland that have this amazingly pretty blue-green color from inclusions of malachite the halites picked up as they grew. You would swear this is a specimen of green fluorite from some new locality, unless you were to lick it and realize that it is SALT (but do not lick it - natural halite specimens can harbor bacteria). Crystals reach 3.5 cm on this fine piece.