Can Raman Spectroscopy Confirm the Presence of Diamonds?

[darkelf]

Hello,

I would like to know how one can confirm that a material is diamond apart from confirming its crystal structure. I tried the copper cooling test and it passed, are they any other tests to confirm? What acid test would be best to confirm?

Thank you

 

[ty2nu]

diamonds burn in Oxygen.

 

[alxm]

Spectroscopy.

 

[Studiot]

Hardness (scratch test)

 

[Phrak]

I prefer the hammer test. Don't use an new anvil were you do precision work. Smashing a diamond can ruin the surface.


The index of refraction of diamond is about 2.4. Cubic zirconia is about 2.2.

 

[turbo]

Just Google on Diamond Tester. They are common and relatively inexpensive.

 

[Studiot]

Specific gravity is another good test.

 

[MATLABdude]

These are all rather 'macroscopic' test methods, and based on some of the questions / comments darkelf has posted in the past (mostly regarding microprocessing / surface coatings), I would hazard that this isn't the case. Having said that, I have no idea either, aside from what the other posters have mentioned (hardness testing, spectroscopy, conductivity--though this might be difficult to distinguish from graphite or other carbon allotropes).

 

[alxm]

Raman spectroscopy is used all the time for diamond surface films.
It's the usual way to characterize CVD diamonds.