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Here’s an updated analysis of physical gold, silver, platinum and copper regarding their respective versatility of use, durability, fungibility, store of value, liquidity and aesthetics.
Physical Properties Comparison
Table 1 below shows the physical properties of gold, silver, platinum and copper:@Gold&Silver
|Electrical Conductivity (S/m)||4.1×107||6.30×107||9.43×106||5.96×107|
|Reactivity Series (no units)||#2||#3||#1||#5|
|Thermal Conductivity (W.m-1.K-1)||318||429||71.6||401|
|Young’s Modulus (GPa)||79||83||168||110-128|
|Hardness (Mohs scale)||2.5||2.5||4.25||3.0|
If you didn’t graduate with honors in chemistry you needn’t worry – I have described each of the physical properties below:
- Density –
- Platinum has the highest density of the four metals which means that you can fit more mass of platinum in the same amount of volume than gold, silver or copper.
- Electrical Conductivity–
- Silver possesses the greatest ability to conduct an electric current through its structure.
- Reactivity Series –
- Platinum is the least reactive, followed by gold, silver, mercury and copper. This is why gold artifacts that have been buried for thousands of years have little to no tarnish on them – and why that long-lost silver vase of yours will need some polishing before it looks presentable for the mantelpiece.
- Thermal Conductivity–
- Silver has the greatest ability to transfer heat through its structure than any of the other metals.
- Young’s Modulus–
- Gold has the greatest ability to be hammered and stretched into long and flat shapes before losing its structural integrity.
- Hardness –
- Platinum is the hardest of the four precious metals. This means that you will have more success in scratching a bar of gold with a platinum coin than the other way around.
It is now not very difficult to imagine how the physical properties of these metals have influenced their evolution over the centuries from jewelry to money to a presently ever-growing list of industrial and scientific applications but how do they stack up on a price-to-physical-property value scale?
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Ratio of Prices of Each Per Unit of Physical Property
In Table 2 below I have presented the current prices (USD/ozt as of December 6th, 2021) of these metals and the corresponding ratios of prices-per-unit-of-physical-property from Table 1.
|Dec. 6, 2021 Price (USD/ozt)||$1779.50||$22.26||$1203.20||$0.27109|
|RATIO||PRICE DIVIDED BY PHYSICAL PROPERTY IN FIGURE 1|
**[Editor’s Note: Higher mathematics is not my forte so I was not able to do the required calculations. If you can, it would be appreciated if you advised me of the numbers in the comment section below. Thank you.]
As can be clearly seen from Table 2, if you want to get decent bang for your electrical buck – or any other buck for that matter – copper stands out as being the best value-for-money. Of course, everyone already knows this.
What useful information is…[ to be had] from the above figures in Tables 1 and 2?…
Despite silver’s better electrical and thermal conductivity and similar Young’s Modulus to gold, its price ratio in these three physical properties makes it appear to be extremely cheaper than gold. As such, one may conclude that currently silver is a much better investment than gold.
What about platinum and its unusually low price relative to gold today? Historically platinum has traded at a premium to gold. While today you will get a better bang for your buck if you use gold for electrical and thermal conductivity applications rather than platinum, copper trumps both of these metals in that regard so the price difference between gold and platinum must be coming from a different use of the metals.
…Clearly a coin or bar made from platinum will be a better store of value – at current prices – than gold. Why? Simply because platinum:
- is harder (won’t scratch),
- less reactive (won’t tarnish) and
- occupies a smaller volume (easier to store) than gold.
- central banks simply can’t get enough platinum bullion (due to its rarity in the earth) to make it worth their while to replace their gold bullion or perhaps that
- platinum has been unable to (in its short existence) shake off gold as the true form of money.
Whatever the case may be for you, I believe that an analysis of precious metals from a physical property perspective not only raises interesting questions but may also yield some valuable insights….
The above article, prepared by Lorimer Wilson, editor of munKNEE.com – Your KEY To Making Money! consists of edited excerpts* from the original article by Krassen Ratchev
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