Table 4 A documentation table of measurement settings for Fig. 9a–d

1

Manufacturer and instrument model

Leica DM 750P

2

Light source

LED

3

Oculars

Leica HC PLAN s10x/20

4

Objective

HI PLAN, 40x/0,65 POL; dry; ∞/0,17/OFN25

5

Condensor

CLP/PH 0,85 S1

6

Köhler illumination

Yes

7

The camera, its mount and the software

Leica MC170 HD; C-mount 0,55x; LAS V4,13

8

Mounting medium

Meltmount ® n_D = 1662

9

The thickness of the coverslip glass

0,17 mm

10

Operation mode

Figure 9a: BF

Figure 9b: PLM—Crossed polars,

0° sample orientation

Figure 9c: PLM—Crossed polars,

red-plate compensator,

0° sample orientation

Figure 9d: PLM—Crossed polars,

red-plate compensator,

90° sample orientation