When Eli Whitney invented the cotton gin, slavery in the United States was in a large decline, do to the inherent unprofitable nature of the cotton/plantation/slave economy in â¦ the southern states.
Jasper is a cryptocrystalline variety of the mineral Quartz (SiO 2). Quartz is the most abundant single mineral on earth. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks.
Kambaba Jasper is often called Green Stromatolite Jasper, and is sometimes referred to as Crocodile Rock or Crocodile Jasper. There are several spelling variations of the name, including Kambamba, Kabamba, Kabamby, Bambamba, and Cumbamba.