An absolute JEWEL! This is really quite a lovely, eye-catching Calcite specimen from the Potosi Mine in Santa Eulalia, Mexico. There are two generations of Calcites, all as lustrous and gemmy as can be. The first generation coats the matrix, and these little gems average 3-4 mm in size. The second generation of Calcites are like fruit on a tree, poised ready to pick. They are also lustrous, gemmy, and up to 2 cm tip to tip. This is a very aesthetic piece, and even better in person - quite a bit better than the normal sort we see from here even today. Art Soregaroli would have gotten this many years ago, and it is not contemporary. None recently have been so good!