Dendrite Crystal Sandstone - SOLD 4.205" wholesale-40 this item will have signs

this item will have signs of wear from crampons and exposure

Cauldron of Life (Deep Sea Hydrothermal Vents)

The lower section of the matrix appears to contain an Alethopteris fossil as well

87" polished Cleoniceras fossil from Madagascar

Dendrite Crystal Sandstone - SOLD 4.205" wholesale-40 this item will have signsThough they may look like fossil plants, dendrites are incredible and inorganic formations that occur solely due to interactions between physics and geochemistry. These branching patterns are made of manganese oxides and commonly form on the surface of sandstones. As the manganese cools, it crystalizes into thin, tree like shapes in the same process that creates snowflakes. This specimen is a 4. 205" sandstone showcase piece that has been imprinted