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Visual Examination of Fresh Break
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| visual examination of fresh break |
ötlich braun, im Kern grünlich grau, h, bricht gratig, dicht, zahlreiche feine bis mittelgroße weiße Partikel, haufig grabe bis sehr grobe rotbraune Partikel, etwas Glimmer |
| colour of fresh break |
5YR5/6, yellowish red, core:10YR5/2, grayish brown |
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Observation Under the Binocular Stereoscope
(all lengths in mm)
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| porosity |
7.5%; void form: vughy; void length: 0.04-0.4 |
| inclusions |
10%, length: 0.02-1.5 |
| sorting |
unsorted |
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Inclusions
(all lengths in mm)
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brown inclusions |
frequent, angular, subelongate, rusty brown;rusty brown, 0.04-3 |
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calciumcarbonate |
frequent, subangular, subelongate - elongate, white, 0.08-1.5 |
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grey inclusions |
frequent, angular;rounded, spherical - subspherical, dark grey, 0.08-0.8 |
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mica |
infrequent, angular, spherical, white, 0.02-0.04 |
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quartz |
infrequent, very angular, spherical, clear;white, 0.6 |
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reddish inclusions |
infrequent, angular, spherical, reddish brown;reddish brown, 0.08-0.24 |