No, this has nothing to do with the next Indiana Jones movie…

Archeologists in southwestern Spain have discovered a cache of incredible weapons made of rock crystal. Dating back to at least 3000 BCE, these weapons include 25 arrowheads and a stunning crystal dagger that would have taken enormous skill to carve.

Found as part of grave good in the megalithic tomb site of Montelirio tholos, the dagger was found with an ivory hilt and sheath. Measuring nearly 8.5 inches long, it’s similar in shape to other flint daggers of the period.