This nice cross is 50 mm long and comes with a cord
Hematite is known as a "stone for the mind". It brings mental organization and is very grounding and calming. It helps with original thinking, logical thinking, and mathematics. It decreases negativity and can help balance the body/mind/spirit. Physically it has been used to keep the body cool, to decrease blood disorders, nervous problems and insomnia, as well as align the spine and mend broken bones. Hematite is associated with the root (base) chakra.