American Party And Wedding Jewellery.

A Fashion In American Stylish 18k Gold Jewellery necklace earrings and bracelet and rings white gold and yellow gold jewellery. 

By Aamir Mannan.

There is a point here which may usefully cleared up since it causes confusion to students. what is known as the critical angle of a stone is the angle at which rays of light passing from the stone into air are refracted at 90 to a line prependicular to the surface between the two media . rays striking the inside surface of a stone at angle creater than this critical angle cannot emerge, and are totally reflected back into the stone. here the stone is the denser medium, and the higher the refractive index of the stone is the smaller is its critical angle. in the case of refractomemter 

the principle is exactly the same, but here the glass of the refractometer is the denser medium, and the stone is the rarer medium. thus, in this case the higher the refractive index of the stone the greater is the critical angle between it and the glass of the instrument.

Blue Sapphire Party Jewellery.
By Aamir Mannan.
11.DOUBLE REFRACTION AND DISPERSION

As With any other test, practice and perseverance are needed, and when the beginner has become accustomed to getting results in easy specimens he should strive to develop his skill to the limit and learn to gauge approximately the strength of the double refraction shown. the author has found this to be a most valuable accomplishment. the more thing that can be learned with a pocket lens the better-even if one possessed other apparatus this will not usually be available in an auction room or on other people's premises. this same test can, of course, be extended and rendered easier b using a microscope, which functions as a much more powerful lens, magnifications of 25 to 60 diameters being quite comfortable usable with stone held between the thumb and 

forefinger of the left hand, supported on the microscope stage.

Model jewelery.

By aamir Mannan.

The development of the fashion world as it is an example for you if you work hard you too can get this place, and this way you can make Pakistan proud,

  We've tried to fashion a small're quoting,

Arrangements which we have only a few days of hard work that you will surely love.

And you think to step into the fashion world,

And if one of you in this endeavor we came this way, it will be our great success,

With us you will get the reward of their labor. And of course you start journey to success will

The fashion spread throughout the world will be with us,

It will be a long day in the whole of Pakistan in the name of fashion,

We recognize that there are people in every country of Pakistan Pakistan learn from the things,

If you will join us in our effort will encourage us, and we will continue to work the same way

If you will join us in our effort will encourage us,

And we will continue our work as well because then China would