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This is a tree fossil.  Petrifaction is the process of organic material fossilizing. It is the result of a tree or plant having completely transitioned to stone by the process of permineralization. All the organic materials have been replaced with...

Lunar Highlands Simulant is engineered to be chemically and mechanically identical to the surface material of the highland regions of the Moon. Composition:  Oxide Wt.% SiO2 44.18 TiO2 0.79 Al2O3 26.24 Cr2O3 0.02 FeOT 3.04 MnO 0.05 MgO 11.22 CaO...

This material has been engineered to be chemically and mechanically similar to asteroids, and was based on the Orgueil astroid.   Orgueil is a scientifically significant carbonaceous chondrite meteorite that fell in southwestern France in 1864. Orgueil is one of five known meteorites belonging...

This ribbed shell is a fossil of the order Rhynchonellida.  These brachiopods have existed since the Ordovician period 485 million years ago. Their population was severely diminished during the Permian–Triassic extinction event 252 million years ago, but Rhynchonellida became the...

Our pen-Nothing fancy, but you'll sure look smart using it. Black ink.