Email this pagePrint this page Diatoms - Cl of 100 Go back to: Chrysophyta Quantity in Basket: none Product Code: BLA1004-100 Price: $20.00 Shipping Weight: 0.50 pounds Quantity: Unicellular algae capable of photosynthesis and characterized by producing a thin outer shell made of silica. Their beautiful form justifies their title "Jewels of the sea". View movie and learn more about Navicula