You accidentally came across an ancient grandmother's brooch and cannot understand from what it. Well, the easiest way to understand in the circumstances the campaign to jewelry to the master who by the developed technique under a microscope and also with use of chemical medicines will define to you composition of alloy is. The jeweler will involve in this procedure also scales and the additional applied equipment in the form of nail files and needles.
Instruction
1. The most applicable method is alloy definition by an assay stone. The analysis with application of a standard of metal which is distinguished in alloy, and the Lydian stone on which apply a trace is the cornerstone of a method. The stone has to be a certain breed in the form of a black bar of porous structure. The jeweler also determines alloy, a share of presence of precious metal in a product by color of the left mark.
2. If availability of precious metals is questionable, then the expert resorts to the full chemical analysis with use of "royal vodka" which with an absolute guarantee will designate presence at alloy of gold or platinum. The property of acid to dissolve precious metals is the cornerstone of chemical reaction. It also provoked emergence of the name "royal".
3. Issue spectrometers belong to modern means of determination of composition of alloy. Their range is much wider, than private methods of jewelers, and define non-ferrous, ferrous metals and also rocks as a part of alloys. The principle of operation of this device is constructed on application of different plasma charges.
4. Of course, for house use it is inexpedient to get a spectrometer and definition of alloy of a brooch of your grandmother will not be so strong motivator for purchase of an issue spectrometer. It will be better for you to address to the specialized institution or research laboratory making similar analyses for the population.