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Buy Gemstones Online. Loose Semi-Precious and Precious Stones: Sapphire, Spinel, Topaz, Garnet, Tourmaline, Opal, Emerald, Ruby, Amethyst and Birthstones

Welcome to Semi Precious Stones Guide! We hope you will make this your number one resource for information about Semi Precious Stones and Gemstones of all kinds. What is a Semi Precious Stone? Semi precious stones are gemstones, and the…Re...

Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

Gem Rock Auctions brings gemstone wholesales and gemstone buyers together in an easy-to-use auction marketplace. Don

An interactive reference guide to rocks, minerals, and gemstones.

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Fine sapphire, spinel, tourmaline, alexandrite and spessartite and tsavorite garnet from the internet

We present most recent updates about mining industry issues, mining techniques, and mining equipments, various mining companies, etc. which help the dealer to get more benefit. The rich information in this site gives precious inputs with regards to t...

Top 10 Lists. Listverse is a website dedicated to top 10 lists of trivia from a variety of categories - the most popular of which are top ten lists of bizarre and human oddities.

Discovery Channel online lets you explore science, history, space, tech, sharks, & more, with videos & news, plus exclusives on your favorite TV shows.

Clear and complete beading instructions so your beading adventure is fun and painless! Learn where to buy supplies online and display your favorite beading creations.