| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour reddish brown, texture coarse, numerous fine to large inclusions: white, red, grey, voids |
| colour of fresh break |
reddish yellow 5 YR 6/6 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
15%; void form: vughy (0.08-3.2), channel (0.08-1.2); void length: 0.08-3.2 |
| inclusions |
25%, length: <0.04-1.8 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, subspherical, elongate, black, <0.04-0.2 |
|
calciumcarbonate |
riddled with, well rounded, subangular - angular, very spherical - subspherical, elongate, yellowish, white, 0.04-1.0 |
|
foraminifera |
infrequent, well rounded, very spherical, very elongate, white, 0.08-0.16 |
|
mica |
infrequent, angular, spherical, white, <0.04 |
|
more inclusions2 |
very frequent, subangular - very angular, subspherical - subelongate, yellowish brown, yellowish white, reddish, 0.08-1.8 |
|
quartz |
singular, rounded, subspherical, grey, 0.2 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, red, reddish brown, <0.04-0.8 |