| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light yellowish red, core grey, texture very coarse, numerous fine to large inclusions: yellowish, reddish, dark grey, voids |
| colour of fresh break |
exterior reddish yellow 7.5 YR 7/6, interior brown 7.5 YR 5/3, core grey 7.5 YR 5/0 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
15%; void form: vughy (0.04-2.8), channel (0.06-4.0); void length: 0.04-4.0 |
| inclusions |
25%, length: <0.04-3.8 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
frequent, well rounded - subrounded, subangular, very spherical - subspherical, elongate, black, <0.04-2.8 |
|
calciumcarbonate |
riddled with, well rounded, subangular, very spherical, elongate, yellowish, white, 0.04-0.4 |
|
carbonate pseudomorphoses |
singular, rounded, subspherical, white, 0.5 |
|
foraminifera |
infrequent, well rounded, rounded, very spherical, subspherical, very elongate, white, reddish, grey, 0.1-2.2 |
|
mica |
infrequent, spherical, angular, elongate, white, <0.04-0.08 |
|
more inclusions2 |
very frequent, subangular - very angular, subspherical - subelongate, elongate, greyish brown, yellowish brown, yellowish white, 0.08-3.8 |
|
quartz |
infrequent, well rounded - rounded, very spherical - subspherical, grey, white, 0.06-0.32 |
|
reddish inclusions |
frequent, well rounded, very spherical - subspherical, elongate, reddish brown;reddish brown, <0.04-0.4 |