rings
2006-07-19 05:35:02 · 3 answers · asked by Ranjith K 1 in Science & Mathematics ➔ Earth Sciences & Geology
Silver is softer than platinum and it can be scratched with fingernail, platinum can not.
Silver Will tarnish black when close to a sulfurous compound (like sulfuric acid), while platinum does not.
Silver will dissolve in an oxidizing acid (unlike gold and platinum).
You can also calculate the density of your jewelry. You need to weight it first in a balance and then measure its volume by submerging your jewelry in water and measuring the amount of water that displaces (you can measure this by weight if you submerge your jewelry in the water while you are holding it with a string, the jewelry must not touch the bottom). Then you divide the weight by the volume of water and it will give you the density.
A density of 10. 5 gr/cc is silver a density of about 18 gr/cc is platinum.
Other ways is by looking at scanning electron microscope, or by analyzing by X-ray diffraction in a lab, or measuring its reflectance, etc.
2006-07-19 07:12:34 · answer #1 · answered by Scientist13905 3 · 1⤊ 0⤋
look on the cost tags. Silver is an person-friendly metallic and continues to be fairly low-value. Platinum is uncommon and the charges for platinum jewelry products are astronomical suitable now.
2016-11-02 08:30:32 · answer #2 · answered by ? 4 · 0⤊ 0⤋
well look for the manufacturor's mark. it'll tell you metal and other stuff too.
2006-07-19 07:02:41 · answer #3 · answered by shiara_blade 6 · 0⤊ 0⤋