Hematite is the mineral form of iron oxide. It is coloured black to silver-grey. Hematite is harder than pure iron but much more brittle. It will often form in layers at the bottom of a body of standing water or sometimes as the result of volcanic activity.
As a healing stone hematite is known as a stone for the mind. It brings mental organization and is very grounding and calming. It helps with original and logical thinking and decreases negativity. Use it to help balance the body/mind/spirit. Physically it has been used to keep the body cool, to decrease blood disorders, nervous problems and insomnia.