| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light red, texture fine and compact, numerous small and few large inclusions: grey, white, red, voids, mica |
| colour of fresh break |
red 2.5 YR 5/6 |
| texture of fresh break |
smooth |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy, channel; void length: 0.04 (vughy), 0.06 (channel)-1.7 (vughy), 1.0 (channel) |
| inclusions |
5%, length: <0.04-0.6 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, well rounded - subrounded, very spherical - subspherical, elongate, black, <0.04-0.24 |
|
calciumcarbonate |
frequent, rounded, very spherical, - subspherical, elongate - subelongate, white, yellowish white, grey, 0.04-0.6 |
|
carbonate pseudomorphoses |
very frequent, rounded - subrounded, very spherical - subspherical, subelongate, white, grey, black, 0.04-0.5 |
|
mica |
frequent, spherical, elongate, angular, white, <0.04-0.16 |
|
quartz |
very frequent, well rounded - rounded, subangular, very spherical - subspherical, grey, clear, <0.04-0.2 |
|
reddish inclusions |
frequent, rounded - subrounded, very spherical - subspherical, elongate, reddish brown, <0.04-0.5 |