Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436

An exception to “weak glass” is Prince Rupert’s Drop, a tadpole-shaped drop of stressed glass that can be hammered without breaking. However, if the Rupert’s Drop has its thin tail broken near the drop, the entire drop instantly shatters!


  • Chemical Bonding
  • Matter
  • Materials Science