| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour reddish brown, core light red, texture middle fine, numerous fine to infrequent large inclusions: clear, black, grey, red, white, mica, voids |
| colour of fresh break |
red 2.5 YR 4/6, core red 2.5 YR 5/6 |
| texture of fresh break |
granular |
| hardness |
soft |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy (0.06-1.6), channel (0.06-0.8); void length: 0.06-1.6 |
| inclusions |
10%, length: <0.04-1.2 |
| sorting |
unsorted |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
frequent, subrounded, subangular, spherical - subspherical, elongate, black, <0.04-0.6 |
|
calciumcarbonate |
infrequent, subrounded, spherical - subspherical, elongate, white, 0.04-0.4 |
|
mica |
frequent, spherical, elongate, angular, white, <0.04-0.04 |
|
more inclusions2 |
frequent, subangular - very angular, subrounded, subspherical, elongate, subelongate, clear, grey, pale red, 0.06-1.2 |
|
reddish inclusions |
frequent, subrounded, spherical - subspherical, elongate, reddish brown;reddish brown, <0.04-0.4 |