Teaching Kits

Diatoms & Symmetry

New Green Deal:

As part of the effort to combat the spread of COVID-19, The University of Texas at Austin has implemented a mandatory, campus-wide reduction of laboratory activities to essential operations. In keeping with this mandate, there will be a temporary pause in the distribution of all products from the UTEX Culture Collection of Algae. During this pause, UTEX products will be available for advance purchase at a discounted rate  no discount code required. All orders will be scheduled for delivery when we resume normal operations.


Diatoms are marine organisms with an ornate silica shell. This silica from ancient deposits of dead diatoms is useful in everyday life in products such as diatomaceous earth and toothpaste.

Diatoms are traditionally divided into two broad catagories: centric diatoms (Centrales), which are radially symmetric, and pennate diatoms (Pennales), which are bilaterally symmetric. With this kit students can identify diatoms various shapes, including both symmetries.

Included In Kit

Each kit contains 6 tubes of algae; enough to prepare about 50 slides.

Other UTEX Teaching Kits