I have quartz grain of sedimentary origin and want to study the defects in lattice, which approach should I use?
I ever studied it in crystallography and mineralogy and petrography. So, I think you can study it trough petrography approach by using microscope.
Electron Bback Scattered Diffraction (EBSD) or Treansmission Electronic Microscopy (TEM). They are the only, relatively available, techniques that allow you to study at the crystal lattice of crystals. It depends on what you are studying though
Dear Tesei,
I want to study the defects in the crystal. I am new to the field and don't have much idea of these techniques. I will be very thankfull if u could provide the links to the concerned research papers or any other useful link.
Dear Mr. Singh,
if you want to study the structure or crystal lattice of whatever mineral grain in detail, you have to apply XRD methods like Weißenberg or Gandolfi. This is the way to get an insight into the structure of the mineral. You will also see whether there are lattice defects or not. But you should be familiar with labelling crystal faces, ought to have basics in crystallography etc. It is not the easist way to get in touch with a mineral. Having only single grains or crystals, powder diagrams will not help you make much progress for sample size. I am very outspoken, if you have never been in touch with this kind of investigations there will be no other choice than to attend a course or go through the long way of learning by doing. There are more highly sophisticated methods such as TEM- Focused Ion Beam (FIB). But as you said you are beginner and I would not go this way on my own. A colleague of mine Dr. R. Wirth / GFZ -Potsdam, Germany, may be able to give a much better piece of advice on this matter than me.
I wish you all the best
Harald G. Dill
Dear Kenneth Sir,
I have been discussing this problem with Harald Sir for a while and he has been very helpful. Actually, I have quartz of sedimentary origin from different parts of India. I know that the quartz from southern India have more defects compared to that from northern India, but I don't know which approach to use to prove this thing,
and also there is one more problem that after the formation of the parent rock these defects would have undergone changes because of varoius factors. Is there any method by which I can know about the P-T condition of the formation of the parent rock and track the changes which the crystal has gone with time.
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