Material: Genuine Quartz Stones. 
zinc alloy - lead nickel free.

Pink: is a stone of the heart, a Crystal of Unconditional Love. It carries a soft feminine energy of compassion and peace, tenderness and healing, nourishment and comfort.

Maroon: a highly energetic piece that can assist not only in removing negativity but also transforming and transmuting this energy into a positive and pure Universal light of love.

Navy: is a stone of peace, expression, and order that can enhance organizational abilities, self-discipline, and orderliness. It brings this sense of order to all things, and releases fear, bringing courage to one's life. It is also a boost for creativity and expression.

Black: besides being a great grounding force, can also give you a sense of well being. Black is a protective color that actually gives you a sense of power. It makes you feel secure, daring, and physically powerful.