NOVA

Treasures of the Earth: Gems Preview

Preview: Season 43 Episode 18 | 30s

Their beauty has captivated us for millennia. Their cost can be extraordinary–some are even considered priceless. Precious gems like diamonds, rubies, emeralds, opal, and jade are the ultimate treasures of the earth, and each one is made from a specific–and often torturous–recipe of chemistry, pressure, and heat. The secrets to their sparkle, color, and even strength lie deep inside the gems.

Aired: 10/02/16

Rating: NR

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Parenting is full of obstacles that can be hard to navigate—even without a toddler yelling at your face. There’s no instruction manual, which means discerning fact from fiction and reasonable from ridiculous can be maddening. That’s where Parentalogic comes in, a digital series from NOVA and PBS Digital Studios.

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