Calcite in Low Relief
This is a calcite crystal in a mounting medium of 1.664 refractive refractive index index medium with the linear polarizing filter aligned with the omega direction (bisecting the acute angle).
Transmitted Brightfield Illumination with a Linear Polarizing Filter Aligned with the
Omega Refractive Index
Definition/Function:
Calcite is a trigonal crystal with a negative optical sign. The omega refractive index is 1.66 and the epsilon refractive index is 1.49.
