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Gemstone

en.wikipedia.org/wiki/Gemstone

A gemstone or gem is a piece of mineral crystal, which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as ...

What is a Gem? - International Gem Society

www.gemsociety.org/article/what-is-a-gem/

Emerald, ruby, opal, gems and jewels. These words have been in our vocabulary for thousands of years. However, defining what a gemstone is has proven to be ...

Gemstones: Facts, photos, information for 100+ gems - Geology.com

geology.com/gemstones/

Detailed information and photos for over 100 gemstone varieties from around the world!

Minerals, Rocks and Gems - GemSelect

www.gemselect.com/other-info/minerals-rocks-gems.php

Dec 21, 2007 ... What is the difference between a mineral, a rock and a gemstone? You'll find some answers here.

Gemstones - Creetown Gem Rock Museum

www.gemrock.net/learn/gemstones/

There are over two hundred recognised gemstones. Most are minerals and are cut from naturally occurring crystals. To qualify as a gem, the specimen should be  ...

10 Gemstones Much Rarer Than Diamond - io9 - Gizmodo

io9.gizmodo.com/5902212/ten-gemstones-that-are-rarer-than-diamond

Mar 6, 2015 ... Many people know that diamond is actually pretty common when it comes to gemstones (you can find millions of them in your typical candle ...

Gemstone - definition of gemstone by The Free Dictionary

www.thefreedictionary.com/gemstone

A precious or semiprecious stone that may be used as a jewel when cut and polished. American Heritage® Dictionary of the English Language, Fifth Edition.

What Is Tourmaline Gemstone | Tourmaline Stone – GIA - GIA.edu

www.gia.edu/tourmaline

Tourmalines have a variety of exciting colors with one of the widest color ranges of any gem species, occurring in various shades of virtually every hue.

What Is Morganite Gemstone | Morganite Stone – GIA - GIA.edu

www.gia.edu/morganite

Morganite can form large crystals & its color can range from a soft pink to violet pink. Although morganite is rare large cut stones are readily available.

An Introduction to Gem Treatments - GIA.edu

www.gia.edu/gem-treatment

A topic that often comes up is whether a particular gemstone is or isn't treated. In a sense, humans alter all gem materials after they are found in the earth in ...

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What are Gemstones? - Eternal Tools

www.eternaltools.com

Jun 6, 2013 ... A gemstone is the name given to a piece of mineral (or other rock or organic material) that after it has been cut and polished has been made ...

Birthstones Guide by Month | Learn gemstone colors for birthdays

www.wixonjewelers.com

Birthstones are gemstones that accompany a birth month, each having a unique meaning and historical significance. The popularity of birthstones dates back to ...

Gemstone | Definition of Gemstone by Merriam-Webster

www.merriam-webster.com

Define gemstone: a stone that can be used in jewelry when it is cut and polished — gemstone in a sentence.