EKHI

Curve 1

Temperature K: ~298 Wavelength Range, µm: 5.29-15.0 Geometry θ θ' ω: 7° 7° Composition (weight percent), Specifications, and Remarks: CALCITE, CaCO₃; polished sample from Cherokee County, Kansas; aluminized mirror reference standard; data extracted from smooth curve.

Wavelength / 𝜇m	Reflectance /
5.29	0.058
5.4	0.058
5.49	0.049
5.56	0.058
5.61	0.054
5.7	0.049
5.93	0.047
6.13	0.026
6.24	0.029
6.31	0.048
6.35	0.065
6.37	0.099
6.41	0.202
6.43	0.347
6.46	0.667
6.53	0.859
6.54	0.873
6.62	0.89
6.69	0.888
6.72	0.832
6.79	0.641
6.82	0.611
6.88	0.585
7.01	0.544
7.07	0.509
7.18	0.358
7.28	0.267
7.35	0.237
7.41	0.218
7.57	0.192
7.78	0.165
8.1	0.145
9.04	0.112
9.41	0.105
9.75	0.105
11.2	0.068
11.2	0.086
11.4	0.504
11.5	0.198
11.5	0.165
11.6	0.135
11.9	0.108
12.3	0.095
13.6	0.08
14.0	0.063
14.2	0.119
14.4	0.095
14.6	0.086
15.0	0.081

Curve 2

Temperature K: ~298 Wavelength Range, µm: 5.26-15.0 Geometry θ θ' ω: 7° 7° Composition (weight percent), Specifications, and Remarks: Similar to the above specimen and conditions except mat surface and grain size is 250 to 1200 µm.

Wavelength / 𝜇m	Reflectance /
5.26	0.1
5.46	0.052
5.54	0.049
6.04	0.051
6.22	0.047
6.29	0.05
6.33	0.054
6.39	0.07
6.43	0.123
6.46	0.242
6.51	0.28
6.6	0.297
6.72	0.255
6.79	0.215
6.89	0.179
7.0	0.165
7.1	0.155
7.27	0.188
7.47	0.098
7.84	0.089
8.32	0.09
8.76	0.091
9.07	0.096
9.15	0.1
10.8	0.099
11.2	0.103
11.3	0.14
11.4	0.177
11.5	0.158
11.7	0.135
12.1	0.122
13.1	0.123
14.1	0.13
14.5	0.135
14.7	0.145
15.0	0.145

Curve 3

Temperature K: ~298 Wavelength Range, µm: 5.26-15.0 Geometry θ θ' ω: 7° 7° Composition (weight percent), Specifications, and Remarks: Similar to the above specimen and conditions except grain size is 74 to 250 microns.

Wavelength / 𝜇m	Reflectance /
5.26	0.135
5.37	0.107
5.42	0.085
5.54	0.049
6.04	0.051
6.22	0.047
6.29	0.05
6.33	0.054
6.39	0.07
6.42	0.121
6.51	0.19
6.6	0.206
6.69	0.203
6.75	0.175
6.83	0.156
6.93	0.14
7.12	0.13
7.25	0.1
7.4	0.091
7.85	0.087
8.3	0.089
8.75	0.092
9.13	0.113
9.82	0.121
10.0	0.119
11.2	0.138
11.5	0.162
11.6	0.145
11.9	0.141
12.1	0.153
13.1	0.157
13.5	0.17
14.4	0.157
15.0	0.184

Curve 4

Temperature K: ~298 Wavelength Range, µm: 5.26-15.0 Geometry θ θ' ω: 7° 7° Composition (weight percent), Specifications, and Remarks: Similar to the above specimen and conditions except grain size is 0 to 74 microns.

Wavelength / 𝜇m	Reflectance /
5.26	0.228
5.38	0.187
5.49	0.119
5.58	0.057
5.65	0.077
5.82	0.07
5.88	0.075
6.07	0.061
6.29	0.05
6.33	0.054
6.39	0.07
6.47	0.122
6.53	0.138
6.58	0.143
6.64	0.14
6.81	0.124
7.0	0.107
7.13	0.107
7.26	0.097
7.36	0.089
7.73	0.105
7.81	0.121
7.99	0.116
8.29	0.128
8.53	0.118
8.64	0.121
9.11	0.172
9.41	0.169
9.61	0.177
9.95	0.168
10.7	0.179
11.1	0.189
11.6	0.155
12.4	0.212
13.0	0.205
13.8	0.211
14.3	0.19
15.0	0.199

Curve 5

Temperature K: ~298 Wavelength Range, µm: 5.26-15.0 Geometry θ θ' ω: 7° 7° Composition (weight percent), Specifications, and Remarks: Similar to the above specimen and conditions except grain size less than 5 microns.

Wavelength / 𝜇m	Reflectance /
5.26	0.214
5.35	0.186
5.46	0.16
5.51	0.123
5.58	0.063
5.63	0.098
5.69	0.101
5.81	0.082
5.87	0.087
6.0	0.079
6.08	0.074
6.33	0.054
6.39	0.07
6.61	0.084
6.8	0.075
7.02	0.073
7.34	0.074
7.52	0.104
7.84	0.136
8.31	0.16
8.57	0.149
8.66	0.154
8.95	0.181
9.07	0.189
9.29	0.181
9.61	0.195
10.1	0.182
10.6	0.19
11.1	0.206
11.4	0.185
11.7	0.165
12.2	0.213
12.5	0.221
12.9	0.216
13.8	0.22
14.5	0.201
15.0	0.216

Infrared reflectance from mat surfaces