it just reffers to impurities. it could be anything from lead to platinum. In recycling it would be common to find lead, tin and copper mixed into the gold, and when gold ore is processed, as in, dirt that has gold flakes here and there, and not just mining gold strains, whatever gets seperated is melted down for refinement later, but the raw gold would typically have some heavy natural or weak metals in it like lead and silver.

generally speaking even half gold (14k) will look and act the same since gold is an inert wonder metal.

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Similarly, severe loss can occur and many penny stocks lose all of their value in the long term. Accordingly, the SEC warns that penny stocks are high risk investments and new investors should be aware of the risks involved but you can even make very big money. These risks include limited liquidity, lack of financial reporting, and fraud. A penny stock is a common stock that trades for less than $5 a share. While penny stocks generally are quoted over-the-counter, such as on the OTC Bulletin Board or in the Pink Sheets, they may also trade on securities exchanges, including foreign securities exchanges. In addition, penny stocks include the securities of certain private companies with no active trading market. Although a penny stock is said to be "thinly traded," share volumes traded daily can be in the hundreds of millions for a sub-penny stock. Legitimate information on penny stock companies can be difficult to find and a stock can be easily manipulated.

24K =99.9% Gold ,18K=75% Gold,14K =58.5% Gold , 10K =41.7% Gold Are Present .