Momka’s Sparkly Thunder is a smooth and easy to strike silver glass with sparkle blended throughout. Ideal for sculpture. Range of greens, blues, creams, browns, and purples with burgundy undertones are possible. Clear coat will magnify the sparkle. Need to use with care, when deep encasement to avoid cracking. Use shortest anneal time possible. Recommended highly oxidized flame. This could definitely be one of your favorite rods!