Color/Clear

Clear pyramids were first produced in 2000, one year after the initial four colors red, yellow, green, and blue were first produced. Clear and black were the first expansion beyond the four initial colors, and were both first released to the public in a product called "Black Ice". That product contained 15 clear pyramids (one stash). Clear was later included in the boxed set Ice Towers. Clear pyramids are designated as "Xeno" in the Rainbow vs. Xeno classification system.

Clear