Types of Gemstones by jennyyingdi


									                         Types of Gemstones

There are many types of gemstones found in the earth's surface. Gemstones have
been used for many years as jewelry. The jewels added sparkle and flair to the
person wearing the gemstone. All gemstones are unique in their chemical
There are many different ways to categorize gemstones. Some people categorize
them by color. Others categorize them by hardness. Some categorize them by their
rarity or their popularity. On this website, I am going to categorize them in three
different ways.
                 A diamond is the hardest natural material known.

There are many different types of gemstones. Here are some categories
of gemstones:

There are many different types of gemstones. Here are some categories
of gemstones:

•Corundum: Corundums are gemstones like rubies and
sapphires. The corundum is the second hardest type of
gemstone. It is made of aluminum oxide and a variety of trace
minerals. Due to its very tough nature, rough corundum is
actually used as an abrasive element.

•Quartz: These gemstones include citrine, carnelian, onyx,
and amethyst. Quartz is one of the world's most common types
of minerals. Quartz comes in a multitude of colors. Though
quartz is found fairly commonly in nature, it is still considered a
gem because it is rare to find a large and unflawed quartz

•                   Beryl: These gemstones include emeralds and aquamarines
                    and are related to quartz. Beryl is made of berylium and
                    aluminum, but has some other elements mixed in. It can be in
                    its transparent form or be colored green, light blue, or even red
                    or yellow.

•   Diamonds: These stones are considered the most valuable in the world.

• Chrysoberyl: This type includes both cat's eyes and
alexandrite. It is the third hardest gemstone. It has a lot of
berylium mixed with the base element of aluminum oxide.
Chrystoberyls typically have a green to yellow shade that
is known for appearing differently under different shades of

                • Jade: Jade has recently been given its own category since under
                chemical analysis, scientists learned that jade is indeed different
                from beryl. Jade stones typically are made of calcium and magnesium

• Feldspar: Feldspar is frequently found in earthquake faults
and volcanic chains. Due to heat and pressure, the tectonic
elements of a feldspar come together to form a red gemstone
called feldspar.
• Organic gemstones: These types of gemstones occur in organic sources
rather than mineral sources. For example, amber forms from tree sap that has
been fossilized. Pearls are formed from oysters.

Gemstones have also been categorized by the way they are made. If you
are interested in purchasing jewelry, be sure to keep these three
categories in mind, because they will greatly impact the cost of your

•Genuine gems have been extracted from the earth and were made by nature.
These will be the most costly.

•Created stones are ones that are lab created copies of the real genuine stones.
They are generally much cheaper than genuine stones and do not have the
imperfections found in mined genuine stones. Created stones are going to be a lot
cheaper in cost than genuine gems.
•The third type of stone is synthetic. Synthetic stones can be made of
materials such as plastic, glass, or crystal. They do not have the same
crystallization or chemical composition of genuine stones. Synthetic stones
should be very inexpensive.

A third way to categorize gemstones is by precious, semi-precious, and

• Precious: Precious stones include diamonds, sapphires, emeralds, and rubies.
• Semi-precious: Semi-precious stones include tourmaline, garnet, peridot,
amethyst, jade, and aquamarine.
• Organic stones: Jet, coral, amber, pearl
 Birthstones have been used to give good luck on a person's birthday. They have
been used for many centuries to celebrate ones birth. Each birthstone has its own
                                unique qualities.


January                                                      Garnet

February                                                     Amethyst

March                                                        Aquamarine

April                                                        Diamond

May                                                          Emerald

            Pearl or Moonstone

July        Ruby

August      Peridot

September   Sapphire

October     Opal or Tourmaline

November    Topaz

            Blue Zircon or

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