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.
Document status: incomplete. Jasper is the name of dense and opaque varieties of microcrystalline quartz. Jasper is not really a mineral in the strict sense, but a mixture of different types of microcrystalline quartz with impurities of other minerals, and is called a textural variety of quartz.ocument status: incomplete. Jasper is the name of dense and opaque varieties of microcrystalline quartz. Jasper is not really a mineral in the strict sense, but a mixture of different types of microcrystalline quartz with impurities of other minerals, and is called a textural variety of quartz.