| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light reddish brown, texture coarse, numerous fine to large inclusions: white, black, grey, red, mica, voids |
| colour of fresh break |
reddish brown 2.5 YR 5/4 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
10%; void form: vughy (0.04-2.4), channel (0.06-2.0); void length: 0.04-2.4 |
| inclusions |
15%, length: <0.04-1.6 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, very angular - subangular, subrounded, subspherical, elongate - subelongate, black, <0.04-0.7 |
|
calciumcarbonate |
very frequent, subrounded, subspherical - very spherical, elongate - subelongate, white, red and white, 0.04-1.6 |
|
mica |
frequent, spherical, angular, elongate, white, <0.04-0.06 |
|
more inclusions2 |
frequent, very angular - subangular, subrounded, elongate, subelongate - very elongate, subspherical, clear, grey, white, 0.04-1.4 |
|
reddish inclusions |
frequent, subrounded, very spherical - subspherical, elongate, red, reddish brown, <0.04-0.06 |