| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
light brown, granular; some fine white and many dark fine to large inclusions |
| colour of fresh break |
7.5YR6/3 |
| texture of fresh break |
granular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
5%; void form: vughy; channel; void length: 0.025-0.75 |
| inclusions |
7.5%, length: 0.01-1.5 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
frequent, rounded - subrounded, spherical - subspherical, black, 0.08-1.5 |
|
brown inclusions |
infrequent, rounded, spherical - subspherical, rusty brown, 0.12-0.6 |
|
carbonate pseudomorphoses |
riddled with, well rounded, very spherical, white, 0.025-0.25 |
|
foraminifera |
infrequent, well rounded, spherical, white; yellow core, 0.12-0.25 |
|
grey inclusions |
singular, subangular, subelongate, grey and white, 1 |
|
mica |
frequent, angular, spherical; very elongate, white; dark, 0.01-0.08 |
|
quartz |
infrequent, very angular, spherical - subspherical, clear, 0.08-0.25 |
|
reddish inclusions |
frequent, rounded - subrounded, spherical - subspherical, reddish brown, 0.08-0.8 |
|
white inclusions |
infrequent, rounded, spherical - subspherical, white, 0.08-0.25 |