This is part of a guide to the identification of particles seen in samples of free particles. This file includes elongated particles that have
barbs along their length. Click on the image that most closely fits what you see to see similar examples that may more closely fit the particle
you are trying to identify.
These are isotropic particles that have barbs along their length. Silica phytoliths are the most common members of this group but it also
includes some sponge spicules and arachnid setae.
Silica Phytolith . . . . . . . . Sponge Spicule . . . . . . . . Mite Setae