Vintage Spanish Mallorca Pearls Gold Plated Bracelet. This uses "Mallorca Pearls", which are glass balls varnished with a layer called “Essence of the East” that, among other ingredients, contains “guanine,” a crystalline substance found in the scales of some fish, which is what It gives it a pearl-like shine. This comes in a bag that is approx 5" x 2" x 6" and it weighs 0.09lb.