Margins are being increased by 19% on Comex 100-troy ounce gold futures contract.

FORBES: World Events Tell Us That Gold And Silver Have Lower To Go

In order to get one troy ounce of platinum, it takes ten tons of ore, which is generally mined in miserable conditions.

FORBES: Buy Platinum and Sell Gold

Gold futures fell slightly, down 30 cents, or 0.02%, to 1, 723 a troy ounce, while crude-oil prices gained 2.24, or 2.3%, to 100.91 a barrel.

WSJ: Blue Chips Gain 73 Points

Gold futures rose 9.70, or 0.6%, to 1, 756.80 a troy ounce.

WSJ: Blue Chips Slump

Gold lost 7.10, or 0.4%, to 1, 715.90 a troy ounce.

WSJ: Dow Claws Back Into the Black