Gold has been cooling off lately. It hit around $5,300/oz and has pulled back to about $4,200. Watching that drop got me thinking how did gold, out of all the elements on this planet, become the default store of value? Not just in one civilization, but across virtually all of them, independently, across thousands of years.
The Full Table
Let’s start with the whole periodic table. All 118 elements:
118 elements. That’s the entire list nature gave us. If you were an ancient civilization trying to find something to convert excess value/stored time into — something to hold value across generations — you’d be picking from this list.
Let’s eliminate the ones that obviously don’t work.
Round 1: Remove the Gases
If it’s a gas at room temperature, it can’t be money. You can’t hold it. You can’t count it.
All of group 18 (noble gases), plus hydrogen, nitrogen, oxygen, fluorine, chlorine.
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Li │Be │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Na │Mg │ │ │ │ │ │ │ │ │ │ │Al │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ K │Ca │Sc │Ti │ V │Cr │Mn │Fe │Co │Ni │Cu │Zn │Ga │Ge │As │Se │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Rb │Sr │ Y │Zr │Nb │Mo │Tc │Ru │Rh │Pd │Ag │Cd │In │Sn │Sb │ X │ I │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Cs │Ba │La │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │Tl │Pb │Bi │Po │At │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Fr │Ra │Ac │Rf │Db │Sg │Bh │Hs │Mt │Ds │Rg │Cn │Nh │Fl │Mc │Lv │Ts │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘ ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │Ce │Pr │Nd │Pm │Sm │Eu │Gd │Tb │Dy │Ho │Er │Tm │Yb │Lu │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Th │Pa │ U │Np │Pu │Am │Cm │Bk │Cf │Es │Fm │Md │No │Lr │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Down to about 88.
Round 3: Remove What Reacts with Water
If it dissolves in water or reacts with it, it’s not holding value — it’s disappearing. Sodium, potassium, lithium — they literally explode on contact with water. Calcium, magnesium, barium, strontium — they react and corrode. A money supply that dissolves in the rain is not much of a money supply.
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │Al │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │Sc │Ti │ V │Cr │Mn │Fe │Co │Ni │Cu │Zn │Ga │Ge │As │Se │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ Y │Zr │Nb │Mo │Tc │Ru │Rh │Pd │Ag │Cd │In │Sn │Sb │ X │ I │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │La │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │Tl │Pb │Bi │Po │At │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Fr │Ra │Ac │Rf │Db │Sg │Bh │Hs │Mt │Ds │Rg │Cn │Nh │Fl │Mc │Lv │Ts │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘ ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │Ce │Pr │Nd │Pm │Sm │Eu │Gd │Tb │Dy │Ho │Er │Tm │Yb │Lu │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Th │Pa │ U │Np │Pu │Am │Cm │Bk │Cf │Es │Fm │Md │No │Lr │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, radium — gone. Down to about 60.
Round 4: Remove What Rusts or Corrodes in Air
Iron rusts. Aluminum oxidizes. Copper turns green. Zinc corrodes. Lead tarnishes. Tin oxidizes. Nickel tarnishes. If your store of value is slowly turning into dust in open air, it’s not much of a store. You want a coin to look the same in a hundred years as it does today.
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ X │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │Sc │Ti │ V │Cr │Mn │ X │ X │ X │ X │ X │ X │Ge │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ Y │Zr │Nb │Mo │Tc │Ru │Rh │Pd │Ag │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │La │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Fr │Ra │Ac │Rf │Db │Sg │Bh │Hs │Mt │Ds │Rg │Cn │Nh │Fl │Mc │Lv │Ts │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘ ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │Ce │Pr │Nd │Pm │Sm │Eu │Gd │Tb │Dy │Ho │Er │Tm │Yb │Lu │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │Th │Pa │ U │Np │Pu │Am │Cm │Bk │Cf │Es │Fm │Md │No │Lr │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Iron, cobalt, nickel, copper, zinc, gallium, arsenic, selenium, cadmium, indium, tin, antimony, tellurium, thallium, lead, bismuth — gone. Down to about 30.
Round 5: Remove the Radioactive Ones
If it’s radioactive, it has a half-life. That’s the opposite of a store of value — it’s literally decaying in your pocket. And anything that’s going to irradiate you is a non-starter for something people have been handling for millennia.
Francium, radium, technetium, promethium, polonium, astatine, radon, and the entire actinide series (thorium through lawrencium) — gone.
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ X │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │Sc │Ti │ V │Cr │Mn │ X │ X │ X │ X │ X │ X │Ge │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ Y │Zr │Nb │Mo │ X │Ru │Rh │Pd │Ag │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │La │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘ ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │Ce │Pr │Nd │ X │Sm │Eu │Gd │Tb │Dy │Ho │Er │Tm │Yb │Lu │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Down to about 20.
Round 6: Remove the Toxic Ones
If it’s poison, people aren’t going to want to handle it for thousands of years. Arsenic, thallium, lead, bismuth, polonium — gone. Also the remaining lanthanides, which are mostly toxic and pyrophoric.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ X │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Ti │ X │Cr │Mn │ X │ X │ X │ X │ X │ X │Ge │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Zr │Nb │Mo │ X │Ru │Rh │Pd │Ag │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Down to about 16.
What’s Left
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐ │ X │ │ │ │ │ │ │ │ │ │ │ │ │ │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ B │ C │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ │ │ │ │ │ │ │ │ │ │ X │Si │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Ti │ X │Cr │Mn │ X │ X │ X │ X │ X │ X │Ge │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Zr │Nb │Mo │ X │Ru │Rh │Pd │Ag │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │Hf │Ta │ W │Re │Os │Ir │Pt │Au │ X │ X │ X │ X │ X │ X │ X │ ├───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┤ │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ X │ └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
Out of 118 elements, 16 survive:
Transition Metals:
Titanium (Ti)
Chromium (Cr)
Manganese (Mn)
Silver (Ag)
Gold (Au)
Platinum (Pt)
Zirconium (Zr)
Niobium (Nb)
Molybdenum (Mo)
Ruthenium (Ru)
Rhodium (Rh)
Palladium (Pd)
Hafnium (Hf)
Tantalum (Ta)
Tungsten (W)
Rhenium (Re)
Osmium (Os)
Iridium (Ir)
Metalloids:
Silicon (Si)
Germanium (Ge)
That’s it. That’s the entire list of elements that are solid at room temperature, don’t react with water, don’t corrode in air, aren’t radioactive, and aren’t toxic.
So Why Gold?
Look at the list again. Most of these are industrial metals — useful, but not great stores of value. Titanium, chromium, manganese — they’re critical for industry, but they oxidize over time and new deposits surface regularly enough that scarcity alone isn’t going to sustain a premium.
Silicon and germanium are interesting but they’re brittle solids — you can’t exactly make a coin out of them.
That leaves silver and platinum. Silver tarnishes (it reacts with sulfur in the air). Platinum is great but it’s so rare and hard to work with that it wasn’t practical as currency until modern refining.
And then there’s gold.
Gold doesn’t react with water. It doesn’t react with air. It doesn’t tarnish. It doesn’t rust. It doesn’t corrode. It’s not radioactive. It’s not toxic. It’s solid at room temperature, dense enough to feel substantial in your hand, rare enough to be scarce, but not so rare that you never see it.
The reason gold became the default store of value — not in one civilization, but across virtually all of them, independently, across thousands of years — isn’t some mystical property or ancient conspiracy. It’s chemistry. When you eliminate everything that can rot, rust, dissolve, decay, or kill you — gold is what’s left.
Gold is the element that simply refuses to change. And in a world where everything else is slowly falling apart, that’s the most valuable thing an element can do.