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.
We didnt like calling Dalmatian stone a jasper because it doesnt look like jasper upon close examination. The black spots are sharply defined while the spots in many jaspers have a concentric structure or a slightly fuzzy outline. We thought that Dalmatian stone looked more like an igneous rock than a jasper.