Sample Geology Paper on Economic Minerals

Part A: Aluminum

Aluminum is recognized as the best conductor of heat and electricity. The metal has a silvery white appearance in its pure form. Compared to other metals, it is very lightweight with a density that is only a third of steel. Additionally, it has a high tensile strength and becomes sturdier at lower temperatures (Aschehoug, Schulte and Bjørnbet 737). The metal is famed for its high malleability and resistance to corrosion. It is also effortless to recycle. The high conductivity of aluminum makes it ideal for making transmission lines for electric power (Radel 136). It is alloyed with other metals such as steel and copper to make structural materials and cookware. Notably, the extraction of aluminum from bauxite is an energy-intensive process that uses a lot of electricity and water, which makes the process contribute to the emission of greenhouse gases from the fuels used and the by-products of the process as well.

Part B: Hematite

The mineral never heard of in the list is hematite. It is an oxide of iron that occurs in the form of crystals with an appearance of silver grey or black to steel (Makovicky, Parisatto and Højlund 165). The chemical formula for this mineral is Iron (III) Oxide or Fe2O3.  Moreover, it is non-silicate. It is used in the making of pigments, shielding from radiation, ballast, and preparation for separation of heavy media (Fergason, Gaddis and Rogers 361). The mineral is often found in the bottom of massive standing water bodies such as lakes after precipitating and settling at the bottom of standing water.


Part C: Lead

Lead is a mineral that has a bluish-white luster when pure. It is a soft metal hence it is highly malleable. The mineral is a poor conductor of electricity. It is known to be resistant to corrosion, though it tarnishes when exposed to air. The most extensive use of lead is in the manufacture of batteries (Buzatu et al. 128). It is also included in ammunition and is a constituent of solder. The lead component in the production of paints is blamed for the increase in lead content in the environment and water bodies. Lastly, it hurts the neural development of children (Rosner 431).



Work Cited

Aschehoug, Silje Helene, Kjersti Øverbø Schulte, and Marit Moe Bjørnbet. “Management Of Social And Ethical Impacts From The Product Life Cycle Of High End Wrought Aluminium Products.” Procedia CIRP 57 (2016): 734-739. Web.

Buzatu, Traian et al. “Processing Oxidic Waste Of Lead-Acid Batteries In Order To Recover Lead.” Asia-Pacific Journal of Chemical Engineering 10.1 (2014): 125-132. Web.

Fergason, R.L., L.R. Gaddis, and A.D. Rogers. “Hematite-Bearing Materials Surrounding Candor Mensa In Candor Chasma, Mars: Implications For Hematite Origin And Post-Emplacement Modification.” Icarus 237 (2014): 350-365. Web.

Makovicky, E., M. Parisatto, and F. Højlund. “Non-Destructive Investigation Of A Scalenohedral Hematite Pendant From Bahrain,C.1800Bc.” Archaeometry 57.1 (2014): 163-176. Web.

Radel, T. “Thermal Impacts In Vibration-Assisted Laser Deep Penetration Welding Of Aluminum.” Physics Procedia 89 (2017): 131-138. Web.

ROSNER, DAVID. “Imagination And Public Health: The End Of Lead Poisoning In California?.” Milbank Quarterly 92.3 (2014): 430-433. Web.