Did you also check the JPL ASTER Spectral Library?

The ASTER spectral library is currently made up of three other spectral

libraries: the Jet Propulsion Laboratory (JPL) Spectral Library, the Johns

Hopkins University (JHU) Spectral Library, and the United States Geological Survey (USGS - Reston) Spectral Library.

For example, the reflectance spectra of clay minerals like kaolinite, smectite and illite formed by argillic alteration can be found in the JPL library in the 2 µm to 25 µm wavelength range. If you are interested in sericite which is similar to muscovite and illites, they are also found in the library in the same wavelength range. The reflectance spectra of Epidote, Chlorites, Pyrites, Hematite and Magnetite which are associated with Propylitic alteration are all found in the library too.

Are you interested in taking the reflectance spectra of the mineral (rock sample) with a spectroradiometer and then compare it with the library spectra?

http://speclib.jpl.nasa.gov/search-1

I agree with James.  The JPL ASTER Spectral Library is a very useful site. If you need a bulk data, you can also get it from them.  The paper for the library is this one:

http://speclib.jpl.nasa.gov/downloads/2009-Baldridge.pdf

Dear James & Eric

thank you for your help.

about your question James I should say No, the exact aim in this work is find the spectral sign of those materials (that I wrote in the question) to use them as ground truth to discover them in the image.

As i see you are expert in this field. I need just 4 spectral sign. 3 of them are in the question and the fourth one is ''advanced argillic''. I don't know what are these things exactly!! would you please help me to fine their spectral sign?

I am not an expert in this field as I am also a graduate student like you. So in that respect I am also learning. But I can certainly suggest the following:

1. First of all you should get a good theoretical handle on the topic and geologic terminologies by reading some reference books and research articles. Begin with your university library or the web. "Argillic and Advanced argillic" that you refer to as 'things' are in fact terms to describe alteration processes which are found in various hydrothermal systems. Clay minerals such as kaolinite and montmorillonite are associated with Argillic alteration forming under lower temperatures as compared to advanced argillic alteration processes formed at higher temperatures with a variety of other appropriate chemical conditions. Clay minerals like kaolinite and dickite can be found where advanced argillic alteration process takes place. Therefore, what I think you are interested in is spectral signatures of certain kinds of minerals or rocks which will directly or indirectly provide evidence for argillic/advanced argillic and other alteration processes that have occurred in your study area.

2. Secondly, once you understand how the alteration process works and the minerals which you are looking for, you can then begin by making a preliminary interpretation of the hyperspectral image or in some cases multi spectral image of the study area by referring to a geologic map of the same area. If you already have references to the kinds of minerals and rocks which are present from the mineralogical and lithological map you can correlate their presence in the hyperspectral image by extracting the reflectance or emissivity spectra of minerals and match with the spectra of minerals found in the field and the spectral library.

3. Thirdly, I think the most important part is field verification of your preliminary interpretation. Mostly field work is an essential part of the whole process because everything may not be clear just by making interpretation of the images. You need to know the reality on the ground! Therefore if you have the possibility I would strongly suggest you to visit the field. There is a three part youtube video by my mentor showing how field verification of remotely sensed data is conducted. I have attached one of the links.

By the way where is your study area?

https://www.youtube.com/watch?v=cjuitl_-_LU

Dear James.

thank you so much for your help & cooperation. I will do as you said.

the area is a region in north_west of Iran.

Regards.

Is it near Sabalan in Ardabil Province or in Azerbaijan?

Good luck!

I do not exactly know where it is. it is just the beginning of the project. I'll be in touch with you if its ok.

thanks a lot.