Copper Element Number 29 Cu

Here is a photo of a native Copper nugget. These can be found with metal detectors. Below is a photo of a Copper coil from a VCR

Copper is one of the ancient elements, meaning people have known of it for 1000's of years. Copper can  be found in pure form or in minerals. Copper has many uses in everyday life, it has excellent electrical and thermal conductivity. Copper has an important everyday role in both plumbing and electrical systems in most building and homes. Most electric appliances have Copper somewhere inside them.

Copper has other uses, in major alloys such as bronze, brass, and monel, it is used in all sorts of applications. Sculptures, roofing, coinage, musical instruments, cookware, the list goes on and on.

Copper is mined in massive open pit mines, and the demand is so great that there is sometimes talk of "peak Copper". Copper is a recyclable metal, and recycling plays an important role in Copper supplies.

Copper has some cool compounds as well, I spray my apple trees with copper compounds  to prevent diseases such as mold and fungus. In the marine industry boats are coated with a copper compound to prevent "fouling" or marine life from growing on the hull. Copper has many roles as antimicrobial compounds.

Copper is important to some life, humans need copper in some amounts and some people can suffer a Copper deficiency related to iron, with a anemia like disease, also Copper is related to bones and aides in preventing infections. Copper is also important in some photosynthesis, and also some sea animals have a blue Copper blood containing hemocynin Oxygen transporter.

Copper has 29 isotopes, one (Cu62) is used in positron emission tomograpy.

Pure Copper ingots, sold as" investment bullion" for many times the spot prices

Cu 29 metal AW:63.546,  MP:1984,  BP:4645,  D:8.94,  Mohs:3.0

Zinc Element Number 30 Zn 

Pure Zinc bars, these are sold to people sometimes as "investment bullion" usually well over the spot price.  These  bars are made for people with small demands for casting, or alloys.

Zn 30 metal,  AW:65.38,  MP:787,  BP:1665,  D:7.14,   Mohs:2.5

Zinc is an important base metal, both in industry and in human health. Zinc is the 24th most abundant element in the earths crust. Zinc can be found in Pb and Cu ores, as well as some others.

Zinc has anti corrosion uses as a pure element and also compounds, Solid Zinc parts are used as sacrificial anodes on salt water boat parts, the natural electrolysis of salt water and two metals, the Zinc will "take" the corrosion because other metals  have less active corrosive traits. Zinc is also used as a galvanic protective coating, such as galvanized steel parts.

Zinc is used in some alloys such as brass, a Cu-Zn alloy.  Zinc is also used in the radiation sensors as a Cd-Te-Zn alloy, that can detect gamma ray photons.

Zinc can form some interesting compounds, one of my favorites is Silver activated Zinc Sulfide, which is radio luminescent. Clock faces were painted with pigments using this material also containing Radium, which caused the clocks to glow in the dark. Zinc compounds are also used in TV screens and all of my homemade particle viewers, AKA spinthariscopes. Zinc oxides can be used as sunblock, seen in bright colors smeared on sun burnt kids at spring break.

Zinc has 5 natural isotopes and many radioisotopes. One Zinc isotope could in theory, be used to "salt" nuclear bombs, like Cobalt, using the energy of the bomb to create short lived powerful fallout, giving the bomb more effective killing power, like they need it.

Zinc is important in our body, more than 2 grams of Zinc is in our body, and it is important for many functions. RNA and DNA, enzymes, and brain functions. It is important for the immune system, and some cold medications contain Zinc. Zinc deficiency causes a handful of issues with children world wide,  including  growth retardation, immune system suppression, and diarrhea, which is a factor in the death of children in the developing world.