Group items matching
in title, tags, annotations or urlNASA - Exploring the Moon Educator Guide - 0 views
GeologyLink® - 0 views
Natural Gemstones - Contents - 0 views
About Birthstones, Birthstone Jewelry, Birthstones for Each Month - 0 views
-
"About Birthstones birthstones A birthstone is the "gemstone associated with the date of one's birth, the wearing of which is commonly thought to bring good luck or health. Supernatural powers have long been attributed by astrologers to certain gemstones." - from Encyclopedia Britannica Birthstones come in a colorful array of sparkling jewels and glowing gemstones, each one with its own place in history and myth. From folklore tales, Biblical texts, and the annals of history, these gems have had a special place in both the hearts and minds of humanity. Discover historical facts, origins, trivia, fun facts, myths, and more about each month's birthstone by selecting the month of your choice from the menu at the left. "
NOVA Online | The Diamond Deception | A Primer of Gemstones - 0 views
-
A Primer of Gemstones Where do diamonds fit into the pantheon of gems? Here, we present 20 of the world's most prized gemstones, together with the properties that experts use to distinguish them from one another and from artificial lookalikes. Click on the gems at left and become, for the moment, a gemologist.
Gemstones - Contents - 0 views
Gemstones - Gemstone Jewelry Advice - How to Buy Gemstone Jewelry - 0 views
Mineral Sciences - Exhibitions - 0 views
Color in Minerals - 0 views
Eric Weisstein's World of Chemistry - 0 views
Energy Resources - 0 views
1 - 17 of 17
Showing 20▼ items per page