| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
coulor red, core grey, coarse texture, numerous small to large inclusions: yellowish white, red, voids |
| colour of fresh break |
light red 2.5 YR 6/8, reddish gray 2.5 YR 5/1 |
| texture of fresh break |
irregular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy; void length: 0.04-0.6 |
| inclusions |
30%, length: <0.04-0.7 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, spherical - subspherical, elongate, black, 0.04-0.2 |
|
calciumcarbonate |
riddled with, rounded, very spherical - subspherical, elongate, yellowish white, white, <0.04-0.6 |
|
carbonate pseudomorphoses |
very frequent, rounded, very spherical - subspherical, subelongate, yellowish white, white, 0.04-0.7 |
|
mica |
infrequent, spherical, elongate, white, <0.04-0.04 |
|
quartz |
frequent, well rounded - rounded, subangular, very spherical - subspherical, grey, clear, 0.06-0.28 |
|
reddish inclusions |
infrequent, rounded, very spherical - subspherical, red, reddish brown, 0.04-0.32 |