This is block 2 in the patterns being offered by Barbara Brackman, on Women's Suffrage. The name of this block is Amethyst. It was chosen to represent the colors used by the Suffgragists and the more militant Suffragettes in England. Their banners, etc. were made using symbolic colors: white (purity), green (hope), and purple (dignity). You can link to this BOW on my side-bar to read more, or to join in.