| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour grey, edges red, texture fine and compact, few medium sized inclusions: white, grey, red, voids, mica |
| colour of fresh break |
grey 5 YR 5/1, light red 10 R 6/8 |
| texture of fresh break |
smooth |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
2.5%; void form: vughy, channel; void length: 0.04 (vughy), 0.06 (channel)-0.6, 1x 3.2 (vughy), 0.24 (channel) |
| inclusions |
5%, length: <0.04-2.0 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
frequent, well rounded - subrounded, angular, very spherical - subspherical, elongate, black, <0.04-0.1 |
|
calciumcarbonate |
very frequent, well rounded - subrounded, very spherical - subspherical, elongate - subelongate, yellowish white, white, <0.04-0.24 |
|
carbonate pseudomorphoses |
very frequent, rounded - subrounded, very spherical - subspherical, elongate, yellowish white, white, red, 0.04-0.52 |
|
grey inclusions |
singular, rounded, subspherical, grey, 2.0 |
|
mica |
frequent, spherical, elongate, angular, white, dark, <0.04-0.06 |
|
quartz |
frequent, well rounded - rounded, subangular - angular, very spherical - subspherical, elongate, grey, white, 0.04-0.28 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, reddish brown, red, light red, <0.04-0.46 |