Above: transmission images of actinolite. It replaces partly the
glaucophane in this rock.
Above: reflection image from a polished slab, below: double polarization
reflection image.
Actinolite spectra coming from the different spots of
the images above.
Clinochlore
Another green pleochroic mineral in this rock section is clinochlore
(10), Transmission images.
View of the clinochlore on the polished slab. Color
is no more a distinctive sign in the oblique illumination picture
(right) due to light absorption of the minerals beneath the chlorite.
Clinochlore spectra with both lasers from images
above.