| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, edges dark grey, texture fine, numerous small and few large inclusions: white, red, voids |
| colour of fresh break |
dark reddish grey 2.5 YR 4/1, core light red 10 R 6/8 |
| 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)-0.08 (vughy), 0.72 (channel) |
| inclusions |
7.5%, length: <0.04-0.76 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
singular, subrounded, sperical - subspherical, black, 0.04-0.14 |
|
calciumcarbonate |
very frequent, well rounded - subrounded, very spherical - subspherical, elongate, white, yellowish white, <0.04-0.34 |
|
carbonate pseudomorphoses |
very frequent, rounded - subrounded, very spherical - subspherical, elongate, subelongate, white, yellowish white, <0.04-0.76 |
|
mica |
frequent, spherical, elongate, white, <0.04-0.08 |
|
quartz |
singular, subangular, very spherical, clear, 0.12 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, reddish brown, 0.04-0.4 |