Crystal Caves: 2 Rose Quartz Geodes Grow your own gorgeous crystals with the Crystal Caves: 2 Rose Quartz Geodes kit from Kristal Educational. Fun and fascinating, this kit is an excellent gift for the budding scientist in your life. Beneath the rough, craggy exterior, the geode hides a glittering crystal interior. Each kit contains crystal-growing chemicals, geode mold, casting plaster, and instruction booklet. Additional items may be required. For ages 12 and up - Instruction booklet included