Rock preparation for microscopic observations
The samples should have an appropriate dimension (letter A - figure 4). Large samples must be cutted with the saw illustrated in figure 1.

Figure 1- Saw for large samples.


Figure 2 - A- Saw ; B - Wear out disc.


Figure 3 - Polishing.
 Click over the sample to see a detail.


Figure 4 - All the intermediate phases between a hand specimen and the thin section.