First of all, i am new with this type of software, so maybe this is a very simple task to do, but really i am a real novice on this. Mi objetive is measure the surface of minerals grains (crystals) and his perimeters (reactive area). In addition, do the same with the pores and fissures in the grain. What tools should i use for do this job?. In the image attached you can see a example, a plagioclase crystal with his fissures result of the mineral disolution, the scale is there too (upper left).
Any help (maybe a tutorial) will be apreciated