Is Gold ever inflationary?

Believe it or not: Gold has been inflationary. Amazing, huh? During the Spanish conquest of South America, the Conquistadors send back so much gold stolen from the Indians, in such a short time, the Spanish economy could not absorb it. In the seaports, a drink that cost a copper peso soon cost an ounce of gold. The reason was that the currency was inflated so quickly from gold gained without actual work. The operative word in my openin statements is, "stolen". You see, when gold is extracted from the ground in the normal manner, it requires a lot of work. When you do your normal work, you make an incremental improvement in society by your work (unless you are a thief). The essence of money is to be able to exchange labor for labor. You don't necessarily want what I do but someone does who does not necessarily want what you do. Money allows us to do business without the third party involved. If someone digs the gold or silver out of the ground and it's used to create money, there is enough work involved to avoid an inflationary impact. In the case of South American gold, the gold was stolen and dumped into another economy suddenly and created inflation. Yes, I know, theft is a form of work but we're talking about money, which should be honest, so we only want the results of honest work. Normally "money" and "currency" are used interchangeably but "money" by recent historical definition has meant something made from precious metals, also known as "specie". "Currency" is a representation of "money" in the form of a receipt. Hence the clause on gold and silver certificates that stated, "This note is legal tender for all debts, public and private and is redeemable in lawful money at the United States Treasury or any Federal Reserve Bank." If a Federal Reserve Note is redeemable in "lawful money", what does that make a Federal Reserve Note?