Lustrous, translucent, purple amethyst to 1.0 cm in length hosts several porcelain-white calcite scalenohedrons which reach 2.5 cm in length. Specimens of such quality form this part of Mexico, with the color and great association, come out only very rarely! I have not seen before such a large plate of this style, only specimens half this size and smaller. It is top quality for what it is!