Sunday, March 15, 2015

Organic Gemstones

Most of the gemstones are made out of mineral materials. However, there are some of them made from organic materials which means they are made from living things. Here are interesting things about these. 
Pearl
It is known to be the queen of all the gems. This gem had a lovely soft glow in its natural state. A perfect pearl only needs to be drilled fr stringing to be shown off beautifully. A pearl results from an irritation to an oyster or some other shellfish. When the oyster has an irritating object within its body, it gradually builds over it a lustrous coating called nacre, or mother-of-pearl which is a shell lining material that shellfish normally develops. As it covers the irritating object, layer by layer, it builds up a pearl. 
Coral
Coral is used for different kinds of accessories such as necklace, bracelets and other beaded types like curtains. The coral is a hard, stony skeleton built by a small sea animal called a coral polyp. A coral does not have only one color but also red, pink white and black. These are usually the one used as gems.






Jet
A very hard and very black special variety of lignite or brown coal is know as the jet. This gem is velvety black, light-weight and warm to touch. During the Victorian era, when people dress for a mourning ceremony, Jets were famous gemstones. However, nowadays it is not limited only for this purpose of going to funerals.


Amber
Amber is a hardened resin that once oozed out of prehistoric trees. It is now found under layers of sand and gravel. For many years, amber has been a popular material. Most amber are purely transparent but could contain perfect specimens of prehistoric insects that were trapped in the resin thousands of years ago.



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