Tiger Iron tumble stone

Tiger iron (or tigereye matrix) is a quartz-lignite aggregate gemstone containing layers of vibrant golden tigereye, metallic grey hematite and rich, red jasper.
Tiger iron is also sometimes called mugglestone, to the surprise and delight of Harry Potter fans everywhere! (This unusual term probably comes from "mucklestone," found in a place named "Moclestone" in what is now Great Britain.) This version of tiger iron has little, or low contrast, tigereye bands--which can take some of the (dare we say it?) ... magic ... out of the stone. Some versions of mugglestone are also low on red jasper, making it a highly included, banded form of natural hematite.

In Feng Shui, the ancient Chinese art of placement, balance comes from the combination of yellow (earth colors) and black/dark brown (water colors). Because yellow is also associated with communication and dark colors with independence--as well as strong self-discipline--tiger iron gives a strong, clear message when worn. That's a big part of tiger iron's spiritual power.
Tiger iron is said to contain the metaphysical properties of its component stones--the grounding power and circulatory affinity of hematite; the healing power and blood-cleansing abilities of red jasper; the energizing power and clarity inducing strength of tigereye--as well as being considered powerful in its own right. Tiger iron is believed to be a rare and potent three-fold stone; it grounds energies, protects the spirit and manifests the will. As such, practitioners are wary when pairing it with other stones, lest it supercharge them. Tiger iron is affiliated with the root, sacral and solar plexus chakras. It is assigned to the birth signs of Scorpio and Leo, and is popular among "earth" signs such as Taurus, Virgo and Capricorn. It can be found among those born in the Year of the Metal Tiger in Chinese astrology (1950 and 2010)