The person was not talking about "White gold" as a product but white gold as a result of purification. The original speaker was in no way unclear. Or do you too think that adding non gold to gold purifies it to extract only the gold. I'll give you a few minutes to gather yourself.
Get a grip. White Gold is a gold alloy. Nothing more, nothing less. The original poster was clueless and at this point I think you have lost your focus of this exchange.