Polished Ammonite Split Pair - 4.752" Cleoniceras earliestlife The cluster measures 4

The cluster measures 4

Silicate lava hardens during the eruptions and turns into dark glass stones that rain across the island

Size guide

Among its many missions

" ~ Christa McAuliffe (1948-1986) (Source: TIME Magazine February 10

Polished Ammonite Split Pair - 4.752" Cleoniceras earliestlife The cluster measures 4Ammonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 4. 752" polished Cleoniceras fossil from Madagascar. The fossil has been split into a paired set to showcase the beautiful internal chambers of the shell. These internal chambers are called septa and the ammonite could fill them with air in order to float through the ocean like a balloon. After millions of years, they are now