The egg shaped crystal is usually formed by lapidary & is extremely versatile. Held sideways between the thumb & fingers, it can be easily used to scan the auric field of the body.
Pointing the small end forward, it can be used for reflexology, zone-therapy, acupressure and shiatsu. The curve of the egg allows it to fit perfectly in the curve of the hand, allowing ease of use during meditation. The egg shape has been used in reading the aura of another.
Starting at the top of the body and working your way down, the egg crystal helps pin point muddy/blocked areas within the aura. Cold areas signify where areas need work, warm & tingling areas signify where areas are clear.
Once the problem area is found, use the egg shape crystal in an anti-clock wise motion to alleviate the blockage and dispel the muddiness.