Case study: Talc
Chloritoid Garnet Shist
On this page and the following ones I have used
the Raman microscope to study the mineralogy of rock sections. The first
specimen is a thick transparent section of a talc schist. A small
part of the thin section of this rock is reproduced on the left side;
the complete thin section can be seen
The red arrows in pictures indicate the position of the laser
spot for each spectrum. The objectives used for pictures is 2X or 4X.
For Raman spectra recording, the objective is always 50X NA=0.85. The
size of the spot is 2 to 5µ.
Garnet - Chloritoid - Talc
Glaucophane - Rutile - Quartz - Apatite