Kalimaya is a type of rock minerals are classified as precious stones with the names of Opal. Kalimaya stone is said to derive from the name of the place was first known and found precious stones of this type, i.e. Lebak Regency, Banten Province. While Opal comes from the word "opalus" latin and Sanskrit "upala" which means precious stone, or from the word "opallios" from Greece which means the changing of colors. According to the scientific term Opal is a mixture of silica and water with formula SiO2. H2O. Opal consists of natural Opal "natural opal" and opal. That will be discussed here of course is natural opal that is opal which does not process any except the engineering process of cutting and polishing "" cutting"polishing".
Most Opals are very often cited in Australia and even one source mentioned that 95%of the world's Opal comes from Australia, the rest of the United States, Mexico and some countries of Africa. In the market, which are classified as Opal Opal Opal Australia and Africa, while in the domestic market in addition to the known Opal Australia and African Opal Opal is also known for Indonesia which is almost entirely derived from the region of Banten and famous Stone with the name Kalimaya.
Based on physical traits that seem as well as (transparency), the Opal is generally divided into four types, namely Black Opal, White Opal, Boulder Opal and Opal Crystal.
Black Opal is a type of Opal's most rare and the most beautiful Opal types. When Opal gemstone referred to as ' The Queen of Gemstones ", the Black Opal is the King of the Queen, therefore the Black Opal is a type of Opal's most expensive price and of course the most sought-after. For those who bought as an investment, then Opal has Black Opal is its main goal.
The uniqueness, the beauty and charm of this Opal type appearance is essentially a dark color of which varies from dark grey to black. This dark base color to make a variation of red, Orange, yellow, green and blue became very lively.
The following are some important things about the Stone Kalimaya or Opal.
Kalimaya is the type of gemstone (precious stones) from the Group Opal, i.e. the mineral silica with the formula SiO2. nH2O. Not shaped Crystals such as quartz(amorphous), has a hardness of 5.5 on the Mohs scale 6.5 elementary school.
The name Kalimaya comes from the region of Banten, emerging and popular since the beginning of the existence of this rock excavation activities in the area of Maja, Lebak Regency, Banten Province. There is a mention that Kalimaya is derived from the name of the river that is Time Maja spot where the early stone excavation activities were carried out.
The spread of Kalimaya is located in Kecamatan Maja, Sajira and Cimarga, are in rock formations, Pliocene aged Tile. Kalimaya are classified into several types such as Kalimaya, Crystal, Milk tea, a chameleon to Jarong. In the classification of Australia consists of some type of color effect, i.e. ranging from Light to Black Opal Opal. But there is also one kind of Opal,especially those from South America or Africa are named Fire Opal, for this kind ofKalimaya Bantam then Fire Opal can be synchronised with the Kalimaya Opal tea, Lightas a Kalimaya milk, while the Black Opal as Jarong.
Kalimaya stone highly valued among businessmen gemstones so it costs more expensive of Australia Opal, Opal Opal or African American. Among gemstones, referred to as the place of Opal gems, "The Queen of Gems" (Shakespeare) because in the Opal one can behold the beauty of sparkling gemstones such as Emeralds, Ruby, Amethyst, Topas, until Sapphire through the colour of opal.
Reportedly stated that Mark Antony from Rome, presented them to the Queen's opal ring Cleopatra loved. The price of the ring comparison, is worth two thousand horses are good at that. Opal is also the most important part of the jewelry worn by Queen Elizabeth I (1533-1603). Similarly, with Queen Victoria (1837-1901).