Gemstone Review – The Sapphire – Origins, Properties and Uses – sapphire gemstone
sapphire gemstone –
Sapphire is the gemstone form of a mineral known as corundum, with one important caveat: a sapphire is just a sapphire if it is not red, if it is known as a ruby instead. In fact, there is another rule rule, in the case of a pink-orange corundum called Padparadscha (derived from the Sinhalese word for lotus flower).
Colors of sapphire
Sapphires occur in all sorts of colors, which are determined by the amount of impurities present. Elements such as chromium, iron and titanium all contribute to shifting the color of the otherwise transparent mineral to a wide range of colors such as yellow, pink, green, orange and the familiar blue variety. Sapphires are also found in gray and black tones.
Properties of sapphire
Sapphire is a very strong and hardy mineral, which not only has a melting point of more than 2000 ° C, but is also infusible and insoluble. It is also an extremely hard mineral, with five times the strength of glass, it is very scratch resistant and as such has many other practical uses as sapphire jewelry such as sapphire rings.
Practical applications of sapphire
While sapphire is a sought-after jewel in the jewelery industry (used in items such as sapphires, bracelets, pendants, etc.), it has also been used in areas such as electronics and construction. The first laser ever made was with a stick made of synthetic ruby - the red cousin of sapphire.
Sources of sapphire
Sapphire comes in two variants. natural and synthetic. Natural sapphire needs to be broken down. Of course, synthetic sapphire is grown by a process developed in 1902 by the French chemist Auguste Verneuil and later called the Verneuil process.
Due to advances in the production of synthetic sapphire, sapphire can now be produced cheaply on a large scale, making it all the more valuable for industrial use as well as for the jewelry trade.
The most significant source of natural sapphire comes from Australia and Madagascar, although various deposits can be found in deposits around the world.
A star sapphire is so named because a star-shaped pattern appears that presents itself when the sapphire is illuminated from top to bottom by a single light source. This pattern is the result of a phenomenon known as asterism. A star can be found in various types of gemstones, in star sapphires they are due to crossing needle-like impurities.
The rating of star sapphire jewelry depends on the color and intensity of the asterism.
Natural sapphire jewelry is generally more expensive than synthetic sapphire jewelry, as natural sapphires are obviously rarer. The problem, however, is that the distinction between natural and synthetic sapphire can be extremely difficult without the help of an expert. The cost of sapphire gemstones used in jewelry depends on several factors, including color, clarity, size, cut, and quality.
As mentioned above, there is a variety of sapphire jewelry as with any gemstone. Very popular are sapphire rings such as Eternity rings and engagement rings.
The blue variety is perhaps the most appreciated form of sapphire on the market and therefore often finds the highest price. Saphires in the color Cornflower Blue are the most valuable and valuable Kashmir Sapphire or Cornflower Blue Sapphire. The pink-orange corundum padparadscha, however, can achieve higher prices than the finest blue sapphires.
– The Sapphire – Origins, Properties and Uses