| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red, coarse texture, numerous small to large inclusions: white, grey, red, voids |
| colour of fresh break |
light red 2.5 YR 6/8 |
| texture of fresh break |
irregular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy, channel; void length: 0.04 (vughy, channel)-1.8 (vughy), 1.2 (channel) |
| inclusions |
27.5%, length: <0.04-1.8 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, rounded, spherical - subspherical, elongate, black, 0.04-0.16 |
|
calciumcarbonate |
riddled with, well rounded, very spherical - subspherical, elongate, yellowish white, white, grey, <0.04-1.8 |
|
carbonate pseudomorphoses |
very frequent, rounded, very spherical - subspherical, subelongate, yellowish white, white, grey, 0.04-0.5 |
|
mica |
infrequent, spherical, elongate, white, <0.04-0.06 |
|
quartz |
very frequent, well rounded - rounded, very spherical - subspherical, grey, reddish brown, 0.04-0.28 |
|
reddish inclusions |
singular, rounded, very spherical - subspherical, red, reddish brown, red and black, 0.08-0.76 |