| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, core grey, texture fine and compact, numerous small and few large inclusions: white, grey, red, voids |
| colour of fresh break |
light red 2.5 YR 6/8, core dark grey gley 1 4/- |
| 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), 0.06 (channel)-1.6 (vughy), 0.3 (channel) |
| inclusions |
7.5%, length: <0.04-0.9, 1x 1.6, 1x 2.4 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, black, <0.04-0.36 |
|
calciumcarbonate |
frequent, rounded - subrounded, very spherical - subspherical, elongate, very elongate, white, grey, <0.04-2.4 |
|
carbonate pseudomorphoses |
frequent, rounded - subrounded, very spherical - subspherical, subelongate, white, grey, <0.04-0.4 |
|
mica |
frequent, spherical, elongate, white, <0.04-0.04 |
|
quartz |
frequent, rounded - subrounded, subangular, very spherical - subspherical, elongate, clear, reddish, grey, 0.04-0.4 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, reddish brown, <0.04-1.6 |