Bring the water to the boil but do not allow it to boil vigorously-maintain a gentle boil for one minute exactly. Remove the saucepan from the heat and allow the eggs to cool slowly in the water(this can take up to an hour). When the water is cool, remove the eggs, peel and slice in half.
See figure 2 for an example of a Baird Mint rhodium bar. The spot price of rhodium (November 2014) is at $1170.00 per Troy ounce. The 1/10 ounce bars sell for around $210.00 to $230.00. This is a much larger premium over the melt value when compared gold or platinum. The premium on the one ounce bar is around $200.00 to $250.00.
Rarity alone isnât enough to qualify a metal as precious. It must also be naturally occurring, lustrous and ductile, possess a high melting point and low reactivity and, most important to anyone wishing to wear jewelry made from the metal, it must not be radioactive. Natural, radioactive metals like polonium and radium need not apply. Gold, silver and platinum are undoubtedly the most well known precious metals, but they fall short of being the most expensive precious metals in the world. As of this writing, platinum (around US $1,500/ounce) and gold (around US $1,200 per ounce) take second and third place, respectively. Silver, in the low double digits, doesnât even rate. The worldâs first pure rhodium bullion coin, created by the Cohen Mint. The real money is in rhodium. A member of the platinum group of metals which, unsurprisingly, includes platinum, rhodium is most commonly found mixed with other platinum group metals.