"Avantor"

Silvery, paragranite and muscovite-rich with medium garnet crystals.

Define and compare ways organisms have been preserved.

Glossy green dunite (olivine) inclusion in non-genetically related basalt. Average size: 3" x 4".

Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.

Beautifully polished and distinctive slabs or rare 2.3 billion year old fossil stromatolites. Well defined growth structures in matrix.

Cut and finished samples with fiberoptic samples.