News and SocietyNature

Opal black improves eyesight

The name of the stone opal comes from the Latin word "opalus", as well as the Sanskrit "upala", which means "precious stone". According to physical parameters, the mineral is represented by a hydrogel of silica. It follows that this stone is an amorphous quartz, which contains up to 10% water. Opals were called "cod". This is due to the fact that some species can absorb a certain amount of liquid, and during drying - lose it with the effect of cracking.

The color of natural opals is quite diverse, it has shades of all colors of the rainbow. Species of the mineral include more than 100 species. This is caused by impregnations of manganese, iron, nickel and other elements.

Some opals, depending on the color, have their own names. Consider the most famous among them.

Very valuable among opals are noble black opals. This gem is exquisitely beautiful. In this case, the collection on a contrasting dark background of flickering colors can be completely different. The mineral is capable of shimmering with all the colors of the rainbow. Also opal black can have combinations of shades. These are blue with red, blue with purple, blue with green and other combinations.

The cost of a precious stone depends on the number of shades, the uniformity of the distribution of the color scale and the completeness of the contrast of the background. With the increase of these factors, the value of the mineral increases. Thus, black opals (photos) that weigh 2 grams - 10 carats and include five primary colors, will have a price of about $ 20,000. This assessment is basically subjective and depends on the beauty of the jewelry and the views of the buyer or seller.

Opal black is found on almost all continents. Australian deposits include more than 95% of the total mineral production on the planet. The production of opal with predominance of black coloration is mainly attributed to the state of South Wales. This type is the rarest, since it is only about 5% of the total number of gemstones of this kind mined in Australia. In addition, the extraction of precious minerals is tightly engaged in Guatemala, P Egypt, the Czech Republic, Brazil, the USA (Nevada), Mexico.

Medieval medicine claims that the mineral has a number of healing properties: it helps during heart diseases, irritations, fainting, soothes nerves, protects from violent passions, helps restore shine to the eyes and visual acuity. Litotherapists consider opal black to be one of the effective means to help get out of depression. There is an opinion that he heals from insomnia, as well as from nightmares. It is said that every day peering at it for several minutes helps to reduce eye pressure, thereby improving vision.

The mineral is rather supportive to Pisces and Scorpions and can give some people the ability to anticipate danger.

There is an opinion that opal black increases the craving for vicious pleasures in people with a weak character. White stone, on the contrary, strengthens the spiritual principle, creating peace and harmony around the person.

Similar articles

 

 

 

 

Trending Now

 

 

 

 

Newest

Copyright © 2018 en.birmiss.com. Theme powered by WordPress.