| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour reddish brown, core reddish grey, texture coarse, numerous fine to large inclusions:clear, black, white, reddish, mica, voids |
| colour of fresh break |
yellowish red 5 YR 5/6, core reddish grey 5 YR 5/2 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
10%; void form: channel (0.04-2.0), vughy (0.04-4.2); void length: 0.04-4.2 |
| inclusions |
17.5%, length: <0.04-2.4 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, subangular - very angular, rounded - subrounded, subspherical, elongate, black, <0.04-1.2 |
|
calciumcarbonate |
frequent, subrounded, subspherical, elongate - subelongate, white, red and white, 0.4-2.4 |
|
grey inclusions |
singular, subrounded, subspherical, grey, 0.2-0.6 |
|
mica |
frequent, angular, spherical, elongate, white, <0.04-0.06 |
|
more inclusions2 |
frequent, very angular - subangular, subrounded, subspherical, elongate - subelongate, clear, white, grey, reddish, 0.04-2.2 |
|
more inclusions3 |
singular, well rounded, very spherical, yellowish brown, 1.4 |
|
reddish inclusions |
very frequent, subrounded, very spherical - subspherical, elongate, reddish brown;reddish brown, <0.04-0.6 |