| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, core grey, texture coarse and compact, numerous fine to large inclusions: white, yellow, black, voids |
| colour of fresh break |
light red 2.5 YR 6/6, core grey 2.5 YR 5/0 |
| texture of fresh break |
irregular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy (0.04-6.8), channel (0.06-1.8); void length: 0.04-6.8 |
| inclusions |
12.5%, length: <0.04-1.4 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, well rounded - rounded, subangular, very spherical - subspherical, elongate, black, <0.04-0.2 |
|
calciumcarbonate |
very frequent, well rounded - subrounded, very spherical - subspherical, subelongate, white, yellowish, <0.04-0.6 |
|
carbonate pseudomorphoses |
infrequent, well rounded - rounded, very spherical - subspherical, subelongate, white, yellowish, 0.08-1.3 |
|
foraminifera |
frequent, well rounded, very spherical, subspherical, very elongate, white, reddish, 0.16-0.4 |
|
mica |
very frequent, angular, elongate, spherical, white, <0.04-0.06 |
|
more inclusions2 |
frequent, angular - very angular, subrounded, subspherical, subelongate, brownish, reddish, yellowish, grey, 0.08-1.4 |
|
reddish inclusions |
very frequent, well rounded - rounded, subangular, very spherical - subspherical, elongate, red, reddish brown, <0.04-0.6 |