Grow your own collection of sparkling mineral specimens. Dissolve the crystal solutions in water and watch each solution grow, day by day, into a unique crystal formation. Watch the magic happen while learning about the forces that create these minerals deep inside the earth. A fascinating experience for children and adults! Kits include crystal growing chemicals, growing vessels, and a 48-page instruction booklet. Age 12 and up. Large 6-Crystal Kit Make "Emerald" and "Ruby" crystals in geode, cluster, and single crystal forms. D811$21.50 Regular 4-Crystal Kit Make "Quartz", "Emerald", and "Flourite" in crystal clusters and "Flourite" in single crystal form. D810$14.95 Credit Cards Accepted: Discover Card, MasterCard, Visa. Lawrence Hall of Science Members receive a 10% discount on all purchases. Your purchases help to support the educational mission of the Lawrence Hall of Science. © 2006 Regents of the University of California