Lava Lamps Are Mostly Filled With Paraffin Wax, Water, and Chemicals
Tricolor White and Clear Lava® Lamp | 14.5" Inches Tall | Aluminum Base and Cap with 25W Bulb Included | Classic/Vintage Liquid Motion Lamps | Multi-Colored Dynamic Blob Effects - Amazon.com
10 Fun Facts About the Lava Lamp - Ideas & Advice | Lamps Plus