If it occurs in the fashion that goes with the choice of balcony or garden plants, we would still dressed in clothes from another time, and nobody wants to innovate and take risks to plant flowers that do not know, and do not ask the florist or nursery plants that do not bring us some way that is usual. Opal is a mineral associated with quartz, but not quartz, and is characterized by its brightness and chips. Amorphous silica or silica is hydrated, ie, is composed of silicon dioxide (silica), as well as quartz and other minerals. It consists of tiny lepisferas formed by successive layers of cristobalite and tridymite, two-class mineral silicates that match the quartz in its composition, but differ from it by their crystal structures. These microscopic particles have a diameter of about 0.1 microns (1 / 10000 of a millimeter) and are packaged as structures in a three-dimensional lattice. Because that precise lattice, is the only gem known reflectance capable large opal of light rays and transform them into rainbow colors (from red to violet). Unlike other gemstones, opal reflector effect is not due to impurities, but the penetration of light through gaps or spaces called 'voids' located between the spheres. The quality of the opals are distinguished by the purity of the crystals, and therefore on their ability to irradación. We found two main varieties of opals: common opal and opal noble. The first set of colors not present unlike the second variety. The play of colors is produced by the random arrangement of submicroscopic plates of tridymite or cristobalite spheres, which act as diffraction gratings of light. It appears as a vague range of inserts, intensely colored, moving moving the gem. Regardless of the quality of the opal can be found in colors: black, gray, white, brown, purple, yellow, orange, green, blue-green or colorless. In terms of transparency, can be almost transparent and slightly opalescent to opaque. Opal is often an element of fossilized animals and plants. It also serves as raw material in industries carved stone. Formerly the opals came from deposits, now depleted in Slovakia. Australia were found in the earliest sources of opal in 1863. Today there are concentrated 98% of the global market. The town of Coober Pedy in South Australia desert depends almost exclusively on the market for opals. In Mexico, produces a variety of fire opal, and other colors. The variety appears Geiserita deposited in geysers of Yellowstone Park. Today it is even possible to create them artificially through a process of ion exchange. It is precisely the opal mines that become an interesting attraction for tourists, as being the finest mines in the region. It is indescribable the emotion you feel when entering a tunnel made by hand, without protection, in a large mountain. Once accustomed to the darkness and dim light of a flashlight, it's time-giving to the task, which tirelessly mining, to find semi-precious stones, such as the Mexican opal. We talk Juan José Virgin queretanos miners who were the pioneers in the exploitation of opal, and the first mine was found at the foothills of the Tequila Volcano, called "The One", were subsequently discovered "The Latilla" and "La Mora "located in the hills of San Andrés. Later he found a large number of mines, among which that of St. Simon, The Huaxical, Las Cruces, San Martin, Santa Cecilia, San Jose and La Perla. There are approximately 2000 people working in the mines scattered in the different municipalities. The mines Huaxical and San Simon, in their commercial exploitation, are among the most important. You can reach them on horseback or on foot. A cross-country travel is about 20 minutes, and the dirt road marked is 30 minutes. It is advisable to wear appropriate footwear and drinking water. On the way oaks can be seen in various proportions that leaves reach up to two feet long, and small wildlife. During the ascent to the mine landscapes are becoming more beautiful, because they dominate areas where the green is shown in shades of unimaginable intensity. Little by little green give way to the red earth and the piles of discarded quarry workers in the mine. Suddenly, to the left of the road, the mountain split in two and shows a gap of nearly three meters wide, with its red walls, as if having been opened to bleed by the hand of man. Passing through this entrance is a large plain, the heart of the mountain, where lots are huge stone that has been steadily cut by workers. The mine "La Lupita" is one of those to meet resort function. It is only twenty minutes of Magdalena and 6.5 km from the international highway to Nogales, in the Sierra Madre and in the heart of the mining area of San Simon. There are several different guided tours and travel plans very affordable price. Other views that offer these mines are the scavengers, people looking for smaller opals found in pieces of stone thrown by mines, and then market them in the square. Every morning, just before the temple, they have their meeting point the beginner or scavengers opaleros opal in jars or bags strollers offer small debris or stones with opal glass. These are generally small opals are still piece of quarry or immersed in water. Opals are the result of time, as it formed over millions of years, while the layers of silica and volcanic rock overlap, trapping passing minute spheres of water and oxygen. It is for these areas opals in a diffraction effect, spread its unique color and brightness, these being essential to determine its quality. Opals are the result of time, as it formed over millions of years, while the layers of silica and volcanic rock overlap, trapping passing minute spheres of water and oxygen. It is for these areas opals in a diffraction effect, spread its unique color and brightness, these being essential to determine its quality. The more beautiful is a higher quality opal. Maybe that's why his name comes from the Sanskrit antiguoúpala, meaning "precious stone". According to historical data, opals from Mexico were used by the Aztecs for the production of ornamental and ceremonial between 1200 and 1519. At that time the opal was known by the name deuitzitziltécpal "hummingbird stone", referring to the sheen of the stone yal strong resemblance to the plumage of the hummingbird. There is an opal that was used by the Aztecs, known worldwide under the name "Aztec sun god." He was allegedly found in the sixteenth century and later formed part of the Gems of Hope collection. In 1881 it was sold to the Museum of Natural History in Chicago and now belongs to the firm Tifany. Today, besides its economic value opal bears a symbolic value, since it is considered an ideal stone for those born in the month of October. In America the opal stone is associated with symbols of trust, purity and serenity, still others say the Opal helps to achieve a high level of spirituality. Although the origin of this rock is volcanic, it is very sensitive and must work with extreme care, since its composition is desilicio dioxide with water. The amount of water ranges between 4% and 9%, but can reach up to 20%, and that is the reason why it is considered "fragile stone heart." It is recommended that the opal is not exposed to fire or high temperatures, since the characteristics of the composition may become dehydrated and lose their beauty and quality. The so-called precious opals play of colors give a unique product of diffraction, unlike the vast majority of the gems. There are a variety of precious opals, of which we can mention: black opal, very difficult to achieve and highly prized blue opal rain, peacock blue, pigeon blood red, fire red, emerald green, white and yellow. This site has been created based on content gathered and placed in good faith and is not intended to infringe intellectual property or copyright of any person in case this happens, contact me and will be removed immediately.
