Sand from Pinnacles State Park, Washington, Under the Microscope

Garnet from Pinnacles State Park, Washington

This is a garnet crystal from the Chumstick Sandstone.

Transmitted Oblique Illumination

Definition/Function:

The Peshastin Pinnacles are an Eocene sandstone of the Chumstick Formation.

Significance in the Environment:

Characteristic Features:

Associated Particles:

References: