Silver extended its record rally on Tuesday, breaching the key $70-an-ounce mark, while gold and platinum also touched historic highs. Spot silver rose 3% to $71.06 per ounce, after touching a record high of $71.08 earlier. Prices are up 145% year-to-date. "At the bottom of this, the reality is the supply and demand of a market that's been in deficit for five years, alongside increasing industrial demand. The safe-haven aspect, expectations of a weaker dollar and lower yields is part of that equation," said Peter Grant, vice president and senior metals strategist at Zaner Metals. "Silver's next target is $75 but ... (full story)