Gemstone Kalimaya (Black Opal) has the structure and beauty that deserve to be appreciated expensive. Gemstone Kalimaya included in the ranks of agate with the highest price in Indonesia. Gemstone is the price could reach 2500 USD per carat. With such a high price, Banten Provincial Government which is the origin of the Gemstone type is determined Kalimaya will work seriously to improve the economic standard of the population.
1. Origin of Gemstones Kalimaya
In Indonesia, agate opal Kalimaya can be obtained in the exact area of Banten province in districts Cimarga, Sajira and Maja. In addition, this stone can also be found around Borneo. For quality agate Kalimaya of Banten is almost equal to the quality of agate opal from Australia. So far Australia is still the largest supplier of stone Kalimaya in the world, almost 97%.In addition to Australia, Kalimaya can also be found in Mexico with the type of stone Kalimaya fire. Until today there are differences related to the origin of the name opal stone Kalimaya. While the lovers of precious stones mentions that Opal is derived from the Roman, Opalus. Another opinion says that Opal is derived from the Greek Opillos.
2. Structural Characteristics Gemstone Kalimaya
Agate Kalimaya or stone amorfis Black Opal is a form of silica with a content of 3% to 21% is water. The structure of opals Kalimaya capable of transmitting and diffusing light with different colors depending on where it originates agate.This stone has a hardness reaches 5.5 - 5.6 on the Mohs scale is placed on the order of eight. The advantages offered by Kalimaya stone is its ability to reflect multiple colors in a single stone. So this kind of stone one stone can bring a variety of colors depending on its type.
3. Type - Type Gemstone Kalimaya
There are many types of agate Kalimaya on the market. There are about seven different types of agate Kalimaya can you exploit its exoticism. The following types of agate Kalimaya.- Rock crystal Kalimaya
- Kalimaya stone Crystal Coconut Water
- The rock crystal Kalimaya
- Kalimaya rock crystal or Kalimaya Lukut Coffee Crystals
- Kalimaya stone Crystal Milk
- Black Opal stone Kalimaya
- Black Opal Solid stone Kalimaya
4. The Nature-nature Gemstone First Kalimaya
To determine the authenticity of the stone Kalimaya quality, there are some tips and ways to determine the properties of the original precious stones that you should know.- Burning, agate type Kalimaya be fireproof and heat and if burned with fire will be cold in a short time.
- Dirt, agate Kalimaya if exposed to dirt, especially of chemicals to be easily removed. Try it with glue paint or dye the like, then wipe with a cloth if it is lost without a trace means it is Kalimaya that can be justified.
- Rock fibers, in agate type has a fiber that looks though not strong. But that is not native to the stone will look clear without the slightest fiber. You can see it with the aid of a magnifying glass.
- Heavy stone Kalimaya original type certainly has more weight when compared with the agate artificial or synthetic.
5. Prices Gemstones Kalimaya
With the quality offered and the high demand from abroad, making the price of gemstone Kalimaya increasing. Consumers from various countries such as Malaysia, Korea, Japan and the United States are also many hunting gemstones such Kalimaya. Until now, the price for the original super Kalimaya gemstones with colors that have been developed to achieve the lowest possible range of Rp 300 thousand to Rp 50 million.
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