Formed in needle like crystals elongated along the c axis, also fibrous, columnar, and stalactitic. Crystals are frequently twinned and or interpenetrating, white, yellow yellow gold, green green brown, and blue. It is believed to be Helpful in periods of stress and anger, centering, enhances patience, combats chills and warms extremities, and provides insight into roots of problems. Astrological Sign is Capricorn. Number Vibration is 9.