Iridescent Hematite Cluster Articulated The first Spinosaurus partial skeleton

The first Spinosaurus partial skeleton was unearthed in 1912

domed skull

Wren  Sayler: "Wren is a lifelong local San Francisco artist and business owner

These bacteria use sulfate (SO₄²⁻) as an electron acceptor

Iridescent Hematite Cluster Articulated The first Spinosaurus partial skeletonIridescent hematite, also called rainbow hematite, displays a variety of beautiful interference colors. Usually, a thin film comprised of aluminum and phosphate was found to coat such hematite, although one example of a coating with aluminum and arsenate was discovered. The thin films that range from tens to hundreds of nanometers thick are believed to cause the color. High resolution secondary electron imaging shows that the thin film consists of