Ruthenium

Ruthenium red is a biological stain used for light microscopy and electron microscopy. Since its atomic number is 44, my quilt contains 44 different red fabrics.

Neptunium

Neptunium was named for the planet, which was named for the Roman god of the sea. The three doughnut-shaped “stones” stitched to the piece are fossilized segments of crinoids gathered from the shores of Lake of the Woods, Minnesota’s northern sea.