These stellar earrings are based on the colony structure of the freshwater diatom Asterionella. Single Asterionella cells are surrounded by tubular-shaped silicon shells. The individual cells, however, form a star-like colony formation with 8 to 20 other cells. The cells are anchored in the center by extracelluar matter. Asterionella is one of the most abundant types of algae in freshwater environments.
Earrings do not ship from Shapeways with hooks. You will need to purchase and attach them yourself. Each earring weighs approximately 1.5g.