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combining them with copper
This specimen is a fragment of a leaded glass shield window installed in the T Plant (221-T) Plutonium Recovery Building
The smaller specimen is also enclosed in an acrylic specimen jar
this family of Early Permian Period species falls into a disparate taxonomic clade known as synapsids which includes mammals
" ~ Christa McAuliffe (1948-1986) (Source: TIME Magazine February 10
Dendrite Crystal Sandstone - SOLD 5.23" rome combining them with copperThough 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 5. 23" sandstone showcase piece that has been imprinted
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