Combination stones are worn with other gemstones according to the planetary positions in the birth chart. These stones can be either precious or semi-precious gemstones. Combination stones give very good effects if properly combined with the similar gemstones.
In Vedic astrology, planets are friendly and unfriendly in characteristic. Some planets are, malefic and some benefit, therefore if in a horoscope Saturn is posited well in a friendly ascendant as Taurus and Libra, then whites sapphire, Zircon or Diamond can be combined with the Blue sapphire, but after proper astrological consultancy.
Some gemstones are made by combining two similar stones. These are likely semi-precious gemstones. As Tiger Iron is a combination of Jasper, hematite, and Tiger’s eye, so it promotes vitality and helps in passing through change, pointing to a place of refuge when danger threatens to the wearer. Tiger’s iron is extremely helpful for people who are deeply exhausted at any level, especially those suffering from emotional or mental burnout or family stress.
Tiger ironworks on the blood, balancing the blood cell count, eliminates toxins and heals the hips, lower limbs, and feet
This was an example of a combination stone made by combining two semi-precious gemstones. Apart from these combinations, a precious and the semi-precious gemstones can also be combined together to give the maximum benefit to the wearer.