| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, texture fine and compact, numerous very small and infrequent small to large inclusions: white, yellowish white, red, mica voids |
| colour of fresh break |
red 10 R 5/8 |
| texture of fresh break |
smooth |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
3%; void form: vughy, channel; void length: 0.04 (vughy), 0.06 (channel)-1.4 (vughy), 3.8 (channel) |
| inclusions |
5%, length: <0.04-1.2 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, rounded - subrounded, spherical - subspherical, elongate, black, 0.04-0.3 |
|
calciumcarbonate |
riddled with, well rounded - subrounded, very spherical - subspherical, subelongate, white, yellowish white, <0.04-1.2 |
|
carbonate pseudomorphoses |
riddled with, rounded - subrounded, very spherical - subspherical, subelongate, white, yellowish white, <0.04-0.8 |
|
foraminifera |
singular, well rounded, subspherical, yellowish white, 0.6 |
|
mica |
frequent, spherical, elongate, angular, white, dark, <0.04-0.16 |
|
quartz |
frequent, well rounded - rounded, spherical - subspherical, grey, white, clear, 0.04-0.12 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, reddish brown, red, 0.04-1.1 |