Explain what you mean. You actually took a sliver of gold or silver and gave it to someone in exchange for goods or services? Do you have to carry around a scale and a machine to scrape from the gold mass? I'd like to define what you mean - you don't go into Safeway and get your total, then shave off gold slices until you've reached your balance...
An e-commerce site is worth a thousand words... These
are routinely used in exchange for goods and services around here.
Ok, so they give you credit based on the amount of precious metals you have deposited at a third party? That's not spending silver/gold on a purchase any more than using a debit card is spending cash on a purchase.
When I say currency I
mean something I can give to anyone
that is accepted and can be reused by that same person anywhere
. In the old days you could
give a gold coin to someone for a cow, and they in turn could give that same coin to someone else. Today it's not likely you carry an ounce of gold and trade it to any merchant for goods or services, because said merchant would need a way to verify the quantity and quality of the gold, and know someone else they want to do business with who could also do the same verification.