Each month has at least one gemstone; others have more. Here's what know about December's birthstones. December has three birthstones: tanzanite, turquoise and zircon. Of the three, tanzanite is ...

The Border Force is set to auction more than 100 gemstones — valued at over $60,000 — after they were abandoned by a ...

The tiny gray whiskers of merelaniite had been around a while, but had probably been regularly cleaned off larger, better-known crystals like the gemstone tanzanite. The name of the new mineral was ...