gemstone

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$Reflections in a diamond. (gem; cut gemstone; optics; refraction)$

Cold Stones: 9 Gems That Will Make You Feel Like a Peasant

Great Barrier Reef coral bleached area map and infographic

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Tiger shark (Galeocerdo cuvieri).

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Calendar marking march 15th

22 Questions About Time and Timekeeping Answered

The Lost Colony of Roanoke, North Carolina, where 115 people mysteriously disappeared c. 1590. John White discovers the word Croatoan carved onto a tree upon his return to the deserted Roanoke Colony in 1590

The Lost Colony of Roanoke

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

The Castillo, a Toltec-style pyramid, rises 79 feet (24 meters) above the plaza at Chichen Itza in Yucatan state, Mexico. The pyramid was built after invaders conquered the ancient Maya city in the tenth century.

What’s Inside the Pyramid at Chichén Itzá?

Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society

The 10 Greatest Basketball Players of All Time

earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

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gemstone: Facts & Related Content

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Also Known As	jewel • gem

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Topics

garnet jade diamond pearl opal emerald sapphire topaz ruby turquoise bead paste treated gem birthstone cameo ventifact ring pendant brooch crown jewels

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Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones

A brown-colored dog wearing a red-checked shirt with an orange hard helmet and hammer. Labor Day concept, work, jobs.

Odd Jobs Vocabulary Quiz

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$Reflections in a diamond. (gem; cut gemstone; optics; refraction)$

Cold Stones: 9 Gems That Will Make You Feel Like a Peasant