| fabric type |
ISC-CBM-2
|
| ware |
Ceramic Building Materials |
| supposed site of production |
Ischia |
| certainty of arguments |
archaeometric: quite certain |
| visual excamination of fresh break |
yellowish light brown, irregular; many large black shining inclusions, many clear and gray quatz particles |
| colour of freshly broken section (munsell) |
2.5YR6/3 |
| texture of freshly broken surface |
irregular |
| hardness |
hard |
| porosity |
5%; void form: vughy; void length: 0,08-0,4 |
| inclusions |
20%, length: 0,04-2,5 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
|
|
quartz |
very frequent, angular, spherical, clear; grey, 0.2-2,5 |
|
calciumcarbonate |
infrequent, rounded, subspherical, white, 0.4-1.6 |
|
carbonate pseudomorphoses |
riddled with, well rounded, spherical, white, 0,04-0,08 |
|
reddish inclusions |
singular, angular, subspherical, light red, 1,6 |
|
black inclusions |
frequent, subrounded, spherical - subspherical, black, glassy, 0,3-1 |
|
grey inclusions |
very frequent, well rounded, spherical, dark grey, 0,08-0,8 |
|
brown inclusions |
infrequent, angular, spherical, rusty brown, 0,08-0.4 |
representative sample for ISC-CBM-2 
production
sampling
