| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, texture coarse, numerous small to large inclusions: white, grey, voids |
| colour of fresh break |
red 10 R 5/8 |
| texture of fresh break |
granular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: channel, vughy; void length: 0.06 (channel), 0.04 (vughy)-3.4 (channel), 1.76 (vughy) |
| inclusions |
20%, length: <0.04-1.05 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
singular, rounded, spherical, elongate, black, 0.04-0.4 |
|
calciumcarbonate |
very frequent, well rounded - subrounded, very spherical - subspherical, subelongate, yellowish white, white, <0.04-0.32 |
|
carbonate pseudomorphoses |
very frequent, well rounded - subrounded, very spherical - subspherical, subelongate, yellowish white, white, 0.04-1.04 |
|
mica |
infrequent, spherical, elongate, angular, white, <0.04-0.06 |
|
quartz |
frequent, well rounded - rounded, angular - subangular, very spherical - subspherical, clear, grey, 0.08-0.9 |
|
reddish inclusions |
singular, rounded, very spherical, reddish brown, 0.04-0.06 |