Record silver prices are driving discounts, melting decisions, and tough choices for collectors of common world coins.

Gold, silver, and pretty much all precious metals are exceeding expectations, melting faces. This week, gold printed fresh all-time highs, soaring to as high as $5,100. Meanwhile, silver broke $100, ...

When materials become just one atom thick, melting no longer follows the familiar rules. Instead of jumping straight from solid to liquid, an unusual in-between state emerges, where atomic positions ...