Howlite is predominantly a calming stone. It will aid in sleeping, calming the overactive mind, eases insomnia, dreaming, dream retention and stress relief. Physically, it calms the whole body and releases muscle tension. It eliminates pain brought about by stress.
Rose Quartz is great for unconditional love. Known for healing your heart and helping you to practice forgiveness, understanding, and compassion. It removes blockages in the heart caused by pain so you can return to a state of love. With this unconditionally loving aura, you become more attractive to others. Think of Rose Quartz as a love magnet that draws new love into your life. 
Aquamarine is a stone of courage. Its calming energies reduce stress and quiet the mind. Aquamarine has an affinity with sensitive people. It can invoke tolerance of others and overcomes judgmentalism, giving support to those overwhelmed by responsibility