| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light red, core light brown, texture middle fine and compact, numerous small to large inclusions: white, grey, mica, voids |
| colour of fresh break |
light red 2.5 YR 6/8, core reddish yellow 5 YR 6/6 |
| texture of fresh break |
granular |
| 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 (channel, 1x >1.8), 1.0 (channel) |
| inclusions |
15%, length: <0.04-0.9 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, well rounded - subrounded, very spherical - subspherical, elongate, black, 0.04-0.24 |
|
calciumcarbonate |
very frequent, well rounded - subrounded, very spherical - subspherical, elongate, yellowish white, white, <0.04-0.6 |
|
carbonate pseudomorphoses |
singular, well rounded - subrounded, very spherical - subspherical, yellowish white, white, 0.4-0.9 |
|
mica |
infrequent, spherical, elongate, angular, white, dark, <0.04-0.08 |
|
quartz |
very frequent, well rounded - rounded, very spherical - subspherical, grey, clear, white, reddish, 0.06-0.52 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, elongate, reddish brown, red, <0.04-0.2 |