Turkey and other ülkelerindede Although the number of onyx quarry and natural stone quarries in the many mines are scattered across a few countries will be considered. The color of onyx stone extracted throughout the onyx quarries is generally dark gray and black. Besides the light color, the ease of processing varies according to the colors of the onyx stone, which also has unusual colors such as pink and green. Gray onyx stone, on the other hand, is a natural marble stone that is very easily processed and found in the world. The color called gray appears as a mixture of dark gray, gray black on onyx. On this mixture of colors, there are light colored (usually light gray and cream) round or wavy shapes. Gray-black colored onyx stone is generally used in jewelry and rosary making rather than ornaments. Onyx stones are believed to have psychological effects on people. According to Turkish astrologers, these effects are most often synthesized on the signs of aries, lions, bows, buckets and scorpions. These effects include balancing female-male relationships, reducing irritability and anxiety, bringing courage and giving luck. Prices are average and below average.