| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light red, core reddish grey, texture coarse, numerous fine to large inclusions: white, grey, voids |
| colour of fresh break |
light red 2.5 YR 6/8, core weak red 2.5 YR 5/2 |
| texture of fresh break |
granular |
| hardness |
very hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
10%; void form: vughy, channel; void length: 0.04-3.6 |
| inclusions |
25%, length: <0.04-1.2 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, subrounded, spherical - subspherical, elongate - very elongate, black, 0.04-0.32 |
|
calciumcarbonate |
riddled with, rounded - subrounded, very spherical subspherical, subelongate, white, <0.04-0.68 |
|
carbonate pseudomorphoses |
very frequent, well rounded - rounded, very spherical - spherical, white, 0.04-0.6 |
|
foraminifera |
frequent, well rounded, subrounded, very spherical, subspherical, very elongate, white, grey, 0.08-0.52 |
|
mica |
very frequent, angular, spherical, white, <0.04-0.04 |
|
more inclusions2 |
frequent, rounded - subrounded, angular, spherical - subspherical, subelongate, yellowish brown, 0.04-1.2 |
|
more inclusions3 |
singular, well rounded - rounded, very spherical - spherical, yellowish, reddish, 0.08-0.24 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, red, reddish brown, <0.04-0.88 |