| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, peripheral areas dark grey, texture fine and compact, numerous small to large inclusions: yellow, white, voids |
| colour of fresh break |
red 10 R 5/6 |
| texture of fresh break |
smooth |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
5%; void form: vughy, channel; void length: 0.04 (vughy), 0.08 (channel)-0.06 (vughy), 1.6 (channel) |
| inclusions |
10%, length: <0.04-1.7 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, rounded, spherical - subspherical, elongate, black, 0.04-0.08 |
|
calciumcarbonate |
frequent, rounded - subrounded, very spherical - subspherical, elongate, yellowish white, white, <0.04-0.24 |
|
carbonate pseudomorphoses |
very frequent, rounded - subrounded, very spherical - subspherical, subelongate, yellowish white, white, <0.04-1.6 |
|
mica |
frequent, spherical, elongate, angular, white, <0.04-0.06 |
|
quartz |
frequent, rounded, subangular, spherical, elongate, white, clear, <0.04-1.7 |
|
reddish inclusions |
very frequent, rounded - subrounded, very spherical - subspherical, elongate, reddish brown;reddish brown, <0.04-0.8 |