How many gemstones are there?

Answer

There are so many different stones and minerals that are considered precious and semi-precious stones, that it would be almost impossible to name them all. Some well known gemstones are diamonds, ruby, sapphires, and emeralds.
1 Additional Answer
There are around fifty different gemstones that can be purchased for jewelry and decorative items. They are classified by the type of crystals and their optical characteristics.
Q&A Related to "How many gemstones are there?"
A gemstone is a type of mineral or rock. It is made of organic materials. Some types of gemstones are diamonds, opals, garnets, and pearls.
http://answers.ask.com/Fashion_and_Beauty/Jewelry/...
Gemstone is a subjective term. It does not refer to a particular chemical composition or hardness but to the general appeal of the mineral. A gemstone is an attractive mineral that,
http://www.ehow.com/how_5209889_semiprecious-stone...
Gemstones are minerals & sometimes rocks & organic materials that are rarer than the usual stones & rocks & are used in ornamentation & Jewelry
http://www.quora.com/Gemstones/What-are-gemstones
Black diamonds are rare and expensive. They are used to create a strong contrast when combined with white or color stones. A Black diamond get its black color from its impurities.
http://www.ask.com/answers/95310501/what-is-a-blac...
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