The white howlite stone is believed to help teach patience, and overcome self criticism. It is also a very calming stone used to relieve stress of all kinds. It makes an excellent antidote to insomnia due to an overactive mind.
Zodiac - Gemini 
Element - Air

Rhodonite is a stone of compassion, an emotional balancer that clears away emotional wounds and scars from the past, and that nurtures love. It stimulates, clears and activates the heart. Rhodonite grounds energy, balances yin-yang, and aids in achieving one's highest potential. It builds confidence and alleviates confusion.
Rhodonite relieves insect bites and can reduce scarring. It aids bone growth and the hearing organs. Rhodonite stimulates fertility. It treats emphysema, auto-immune diseases and stomach ulcers. Eases inflammation of joints and arthritis.
Chakras - Heart Chakra 
Zodiac - Taurus 
Element - Earth
Typical colours - red, pink, brownish-red, grey
The pink is believed to strengthen love, while the black provides emotional protection.