Opal Stone

Opal has a value of 5.5-6.5 hardware based hard Mohs list, they occupy at number eight. Its composition was rather simple: kiezelzuur and water and a variety of metals that cause opals reflect the wide range of colors. From all sorts of variations in color, opal red and black are the most rare and white and green are the most common. Opal stone which has the basic black background is more valuable than white. But of all of them reflecting the opal stone variegated colors are the most valued. Since one of the composition of opal it is water (3-10% even up to 20%) so be careful not to let this stone to become too dry because it will be easy to crack, also do not hit too hard because of that. Opal stone is also a national of the country of Australia. Opal also much favored by kings and nobles.

The gem opal iridescence is caused by fine silica granules arranged very neatly and bend light and transmit functions, causing popping rainbow colors when viewed from different angles.

There are several types of opal, known as the general public:

Common opal : Opal color that does not show the game at all.

White opal : opal white, gray, milky white, with little or no color game at all.

Black opal : opal color rather dark blackish or brownish color to the game, thus making it more contrast.

Boulder opal: opal that is still attached to the rock.

Matrix opal: opal that is still attached to the rock as lines or patches of color.

Fire opal: opal opaque or slightly translucent red, orange, yellow or brownish color with little or no game at all.

Opal Stone Kalimaya

Opal Stone does have a magical appeal and very strong physically. Although not included precious stones with high levels of violence experienced opal luster can dazzle with twinkling lights of flower jarong her. In Indonesian opal also called the Kalimaya. Banten Kalimaya opal or call it moyo. Opals in Indonesia recently discovered in Banten in the surrounding watershed Mojo. To search for opal miners in this area must dig deep as to make a well. If you do not want to hard-hard enough cruising in the flow

Mojo river, if lucky to find plates of stone or wood and fossil bones with opals Kalimaya stuck in a niche or hole in the objects.Opal Stone Kalimaya of Indonesia is one of the best types of precious stones and the most requested. 

In the market for Kalimaya opal is relatively more expensive than the African opal and Australia.ini possibly due to not terexploitasinya sources Kalimaya deposit precious opal or opal deposits Kalimaya indeed limited.Sebab if the comparison in terms of color and beauty of the opal Kalimaya much prettier and charming.