While there's a lot of merit in that chart, precious metals (that aren't being used industrially) are bought and sold worldwide in Troy ounces, which are heavier than imperial ounces. Also, there are only 12 Troy ounces to the Troy pound, which is lighter than the imperial pound.
You can buy precious metals in grams in consumer markets (i.e., Costco), but all major markets deal in Troy ounces.
While there's a lot of merit in that chart, precious metals (that aren't being used industrially) are bought and sold worldwide in Troy ounces, which are heavier than imperial ounces. Also, there are only 12 Troy ounces to the Troy pound, which is lighter than the imperial pound.
You can buy precious metals in grams in consumer markets (i.e., Costco), but all major markets deal in Troy ounces.
That chart is mostly a joke about Canadian measurement units, it's not really meant to be taken seriously!
Oh, I know. At least we don't use stone to measure people's weights.
I had to use slugs for mass a few times at work and wanted to die!