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Photographic gallery.  Thousands of particles under the microscope.
Pinus ponderosa, Ponderosa Pine Needle Surface Silica

Pinus ponderosa Needle Surface Silica

This is a fragment of the ash from exposing Ponderosa pine needles to 450 degrees Celsius (850 Fahrenheit) in a muffle furnace for four hours.

Transmitted Brightfield Illumination


KINGDOM: Plantae DIVISION: Pinophyta CLASS: Pinopsida ORDER: Pinales FAMILY: Pinaceae GENUS: Pinus SUBGENUS: Pinus SPECIES: ponderosa

Significance in the Environment:

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Core, H.R., W.A. Cote, and A.C. Day, WOOD STRUCTURE AND IDENTIFICATION, Syracuse Wood Science Series, Vol. 6, 1979.