VIVIANITE, SIDERITE

On a matrix of small crystals of siderite they are disposed very aerial various prismatic crystals of vivianite in parallel growth, with very defined top terminal faces, thick, bright and with excellent transparence. The green color is excellent. Due to the vast cassiterite deposits in this mine, removing phosphates is strictly forbidden, and the levels upon which these beautiful specimens are found have been intentionally flooded. The main crystal is: 3,8 x 1 x 0,4 cm.