A gemstone 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 lapis ...
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 ...
Do you know what a gemstone is? Gemstones have many different names. Sometimes, people call them gems. Sometimes, people call them jewels. Sometimes ...
Detailed information and photos for over 100 gemstone varieties from around the world!
Gemstone transparency describes how much light passes through a gem and how it scatters. Learn what causes a gem to be opaque, translucent, ...
Even the most general definition of a gem has many exceptions. Learn what qualities have been used to identify gemstones both scientifically and popularly.
Dec 21, 2007 ... What is the difference between a mineral, a rock and a gemstone? You'll find some answers here.
Define gemstone: a stone that can be used in jewelry when it is cut and polished — gemstone in a sentence.
Jul 22, 2008 ... Most gemstones form in the Earth's crust. Only two gemstones, diamond and peridot, form in the mantle. Learn about how gemstones form.
Interactive guide to the most popular gemstones. ... Welcome to the gemstone section, a free informational reference guide to gemstones, jewelry, and precious ...