Wikipedia - A crystal ball is a crystal or glass ball that aids in the performance of clairvoyance. It is sometimes known as a shew stone. Druids as early as 2000BC were one of the earliest known peoples to have used crystals in divination. It is interesting to note that the Druid religion had similarities to megalithic religions of an "earlier" Britain, thus it is possible that the first use of crystal divination might have come much earlier than is currently speculated. During central Europe's Medieval Period (AD 500–1500), seers, wizards, sorcerers, psychics, gypsies, fortune tellers, and all other types of diviners also used crystals to "see" into the past, present, or future. Due to its transparent nature, a natural gemstone called beryllium aluminium silicate (beryl) was often used for divination. Scottish Highlanders termed these objects "stones of power." Though early crystal balls were made from beryl, they were later replaced by rock crystal, an even more transparent rock. Sean – Gemstone Spheres, especially Quartz varieties affectionately known as Crystal Balls, are possibly the crystal world’s greatest contribution to humanity’s fascination & use of metaphysics as a means for working with subjects outside the confines of the third dimension. In popular culture, the crystal ball as a means of representing foresight is as iconic as the heart shape represents love. Its associations with wizards, seers, and gypsies have distinguished roots that are unfortunately often overshadowed in society at large, especially at Halloween. In reality, the sphere is the most perfect of shapes, equal at every point, universally balanced, with no up or down, left or right. It is the shape of our planet, our sun, our moon. It is primal, and part of our DNA. It is for these reasons that it is a truth and that they work. Physically they are perfectly convex, so they hold & refract light within their structure in a way that can make them appear to glow with very little source light. This physical characteristic also explains their metaphysical mature of amplifying inherent energies and projecting them out into a space with perfectly even distribution. Clear spheres act as a lens, inverting objects viewed through them and because of this distortion & light-play, they can reveal entities and happenings that might not usually be visible to the naked eye. Focusing on these in a more lucid state is the very essence of scrying. Any gemstone sphere placed in a space will not only add a visually attracting physical presence, but will also add the energy of that stone to the space and help provide balance and harmony.