| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour yellowish red, core dark grey, texture coarse, numerous fine to large inclusions: clear, white, grey, black, reddish brown, mica, voids |
| colour of fresh break |
red 2.5 YR 5/6, core dark grey 2.5 YR 4/0 |
| texture of fresh break |
granular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
10%; void form: vughy, (0.04-2.4), channel (0.06-0.8); void length: 0.04-2.4 |
| inclusions |
20%, length: <0.04-1.8 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, angular - subrounded, spherical - subspherical, elongate, subelongate, black, 0.04-1.4 |
|
calciumcarbonate |
frequent, subrounded - rounded, spherical - subspherical, white, yellowish white, greyish white, 0.04-1.6 |
|
carbonate pseudomorphoses |
singular, subrounded, subspherical, white, yellowish white, 0.8-1.2 |
|
grey inclusions |
singular, subrounded, subspherical, grey, 0.16-0.5 |
|
mica |
frequent, angular, spherical, elongate, white, <0.04-0.1 |
|
more inclusions2 |
very frequent, very angular - subangular, subrounded, subspherical, elongate - very elongate, clear, white, pink, 0.04-1.8 |
|
reddish inclusions |
infrequent, subrounded, angular, spherical - subspherical, elongate, reddish brown;reddish brown, 0.04-1.8 |