| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour yellowish red, exterior brownish, texture coarse, numerous fine to large inclusions: yellowish, white, grey, red, voids |
| colour of fresh break |
exterior light brown 7.5 YR 6/3, interior and core reddish yellow 5 YR 6/6 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
15%; void form: vughy (0.04-2.4), channel (0.06-2.0); void length: 0.04-2.4 |
| inclusions |
25%, length: <0.04-2.6 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, rounded, spherical, elongate, black, <0.04-0.12 |
|
calciumcarbonate |
riddled with, well rounded - subrounded, very spherical - subspherical, yellowish, white, <0.04-2.0 |
|
carbonate pseudomorphoses |
singular, well rounded, very spherical - subspherical, white, 0.04-0.12 |
|
foraminifera |
frequent, well rounded, rounded, very spherical, subspherical, white, 0.08-0.4 |
|
mica |
infrequent, spherical, white, <0.04-0.04 |
|
more inclusions2 |
very frequent, subangular - very angular, subspherical, elongate - subelongate, yellowish brown, yellowish white, white, reddish, 0.08-2.6 |
|
more inclusions3 |
singular, subangular, subelongate, white+black, 2.0 |
|
quartz |
infrequent, well rounded - rounded, subangular, subspherical , elongate, white, grey, clear, 0.12-2.0 |
|
reddish inclusions |
very frequent, well rounded - rounded, very spherical, elongate, red, reddish brown, <0.04-0.4 |