Colors: Black-gray, blue-gray, all with sheen or iridescent color flashes, often of silvery blue
Benefits:
Physical - Said to help with high blood pressure, brain functioning, and recovery after strokes
Emotional - Encourages rationality; ideal for hormonal teenagers, and pregnancy
Spiritual - Helps to enhance psychic abilities, dispels negative energy, and very protective and grounding
Chakra: Root
Zodiac: Aquarius