Tektites are formed when meteors collide with Earth. The material ejected from the impact crater is heated and fused into glass.

This batch of tektites are from the Australasian strewnfield, which covers the area within the blue region in the map below and is estimated to have been caused by an impact 790,000 years ago.

All Australasian tektites have a similar chemical composition, which is why they are thought to be from the same impact. The location of the impact crater is still unknown, but a recent study suggests it may have been discovered in Laos.

Details:
Size: 0.4" -0.78"

By Stemcell Science Shop