Although it is one of the lest expensive gemstones, cut rock crystal has been used as imitation diamonds . The most use for rock crystal is in ornamental carvings. The most well known ornamental carving for rock crystal is the crystal ball of fortune telling fame. While rock crystal is common it is hard to find large crystals of quartz with the clarity and size required for crystal balls that most of us associate with fortune tellers. There are many fine chandeliers that are outfitted with rock crystal ornaments.
Many people prefer uncut clusters of rock crystal.
These natural treasures look like crystal cities of fantasy stories. The long slender clear prisms of quartz projecting upward from a common base are true mineralogic wonders that can be admired by all. They cost of good clusters of rock crystal is still affordable and comes from sources around the world. Large individual crystals of quartz have been found in Brazil, the largest weighs over 44 tons. Rock crystal often has inclusions of other minerals and these inclusions sometimes produce popular varieties of ornamental stone.