Appearance: Brainlike, red or grey(unpolished).
Colour: silver(polished), grey, red.
Properties: Grounds, protects, and balances, boosts self-esteem and survival ability. Aids concentration, will power, reliability, confidence. Enhances original thought, removes self-limitations. Yang: balances meridians. Dissolves negativity. Supports timid women. Strongly affects blood, aids anaemia, heals kidneys. Treats leg cramps, nervous disorders, insomnia. Aids spinal alignment, healing of fractures.
Position: Base and top of spine.
Disclosure-If you're worried about your health always see your doctor first. There are no guarantees with crystals, but they may enhance your life.