These vivianite pieces are a deep and rich emerald green. Piece B has some flashes of blue-green. When exposed to light Vivianite will darken until it is fully black. 
 
Piece A ($30) is approximately 2 inches tall and is 89.6g. 
 
Piece B ($23) is approximately 1.5 inches tall and is 66.0 g. 
 
The color on your screen may not be the exact color of the stones. This is a natural product, and each piece is unique and has flaws, which contribute to the beauity and individuality of the crystal. Vivianite is naturally very fragile and small pieces of the crystal and/or matrix may crumble with handling. 
 
These crystals were ethically sourced.