Jade is known as the dream stone, and is said to enable understanding of dreams. Jade is believed to beam love, courage, chastity, and wisdom. At the same time, it’s said to reduce negativity, and increase the ability to express oneself. It’s known to balance emotion, provide comforting energy, endurance, and peace. In addition, Jade is believed to help the body heal itself, increase flexibility, and strengthen the heart, eyes, kidneys, and immune system. The stone is also associated in aiding with mental problems, purifying blood, encouraging a long life. 
Chakras - Heart Chakra
Zodiac - Aries, Taurus, Gemini, Libra
Element - Earth
 
Smokey Quartz is associated with the solar plexus chakra, and known as an excellent ground stone. Many believe it aids in relieving stress and anxiety, while calming a hyperactive mind. Smokey Quartz is also said to disperse fear and lift depression and negativity, while encouraging positive thought and action. Others associate the stone with detoxifying the digestive system, and protecting against radiation. 
Chakras - Base Chakra, Solar Plexus Chakra
Zodiac - Scorpio, Capricorn
Element - Earth/Air