>>19698325>The issue is gold can be faked, and it’s difficult to determine its authenticity and it’s worth in a trade unless you walk around with a testing kit and scalesGold is extremely difficult to fake as most common base metals are nowhere near as dense as gold @ 19.3 g/cm3.
Copper = 9 g/cm3
Silver = 10.5 g/cm3
Iron = 7.9 g/cm3
The closest (in density) metal to gold is Tungsten = 19.28 g/cm3 but looks different, has the highest melting point of any metal (6,192F) and is very hard and brittle. Gold plated tungsten coins fail the "ping" test.
https://www.youtube.com/watch?v=zEK2Ab4wxbo 