Gemstone Jewelry
Gemstone jewelry makes use of precious or semi-precious
stones. These are created from various attractive minerals. It is cut
or polished for different ornamental applications.
The gems used in gemstone jewelry are classified into different groups,
species, and varieties. For example, morganite, heliodor, and aquamarine
are all varieties of the species beryl. Different gems are characterized
by such things as lustre, fracture, and hardness.
It is interesting to know that gemstone jewelry is not always a mineral.
Certain rocks and organic materials are considered gemstones purely
because they are used for jewelry. Jet, amber, and lapis-lazuli are
a few examples of these.