"Freeze-Dried Specimens"

Discover What Sediment is and its Impact on the Environment

Sale

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

A sawn and lacquered slab of classic Precambrian banded layers of hematite (iron) and quartz. Average size: 3" x 4". Ontario, Canada.

Sale

Define and compare ways organisms have been preserved.

Ward's® Ventifact

Sale

Students determine a mineral's hardness between five and 10 on Mohs' scale.