DOI article:
Baranowski, Marcin; Daszkiewicz, Małgorzata [Contr.]: Macroscopic description and laboratory analysis of twelf pottery fragments from Novae
DOI Page / Citation link:https://doi.org/10.11588/diglit.41951#0137
135
The four samples typologically classified to group N3 have elongated pores.
These pores are 0.5-1 mm long (with several c. 3 mm) in sample MD3242; 0.25-
0.5 mm long in samples MD3243 and MD3245 (the latter also including a smali
number of pores of up to 1 mm in length); and ca 1 mm long (several up to 3.5
mm) in sample MD3244. In all of these samples the pores are unevenly
distributed, their ąuantity in the field of vision ranging from 5% to 25%
depending on the area viewed. Sample MD 3246 is the only one in group N3 to
have bubble-shaped pores (with diameters of 0.5-1 mm); these are evenly
distributed, and their ąuantity amounts to ca 15% (tab. 3).
Texture
The spatial relationship of all components within the matrix was determined,
as were-all other attributes, by examining fresh fracture surfaces. The texture of
all samples belonging to group NI is spongy (fig. 5a), whilst those in group N2
have a dense texture with few pores (fig. 5b). The four samples in group N3 also
have a dense texture with few pores. One sample (MD 3246) has a dense texture
with a moderate number of pores (tab. 2).
Compactness
Compactness is an attribute applicable only to the ceramic matrix. It is
assessed by examining the spaces between the pores and grains of the non-plastic
components. Three degrees of compactness were recognised: poor, moderate
and good. Samples in group NI are poorly compacted, those in group N2 are
well-compacted, and N3 samples are moderately compacted (fig. 5c-e).
Appearance in fresh fracture
Fresh fracture appearance, revealing the manner in which a potsherd breaks,
was recorded descriptively employing terms used in mineralogy. All of the
samples within each ceramic group have the same type of fracture surface, the
individual groups themselves differing significantly from one another. Group NI
sherds have a hackly fracture surface, samples in group N2 exhibit a granular-
earthy fracture, whilst those in group N3 present an earthy fracture surface
(fig. 4a-c).
Hardness
Tests were carried out to assess matrix hardness, i.e. the resistance offered by
the matrix to external mechanical factors aiming to scratch its surface. Hardness
was defined using the Mohs scalę of minerał hardness, hence the materials used
The four samples typologically classified to group N3 have elongated pores.
These pores are 0.5-1 mm long (with several c. 3 mm) in sample MD3242; 0.25-
0.5 mm long in samples MD3243 and MD3245 (the latter also including a smali
number of pores of up to 1 mm in length); and ca 1 mm long (several up to 3.5
mm) in sample MD3244. In all of these samples the pores are unevenly
distributed, their ąuantity in the field of vision ranging from 5% to 25%
depending on the area viewed. Sample MD 3246 is the only one in group N3 to
have bubble-shaped pores (with diameters of 0.5-1 mm); these are evenly
distributed, and their ąuantity amounts to ca 15% (tab. 3).
Texture
The spatial relationship of all components within the matrix was determined,
as were-all other attributes, by examining fresh fracture surfaces. The texture of
all samples belonging to group NI is spongy (fig. 5a), whilst those in group N2
have a dense texture with few pores (fig. 5b). The four samples in group N3 also
have a dense texture with few pores. One sample (MD 3246) has a dense texture
with a moderate number of pores (tab. 2).
Compactness
Compactness is an attribute applicable only to the ceramic matrix. It is
assessed by examining the spaces between the pores and grains of the non-plastic
components. Three degrees of compactness were recognised: poor, moderate
and good. Samples in group NI are poorly compacted, those in group N2 are
well-compacted, and N3 samples are moderately compacted (fig. 5c-e).
Appearance in fresh fracture
Fresh fracture appearance, revealing the manner in which a potsherd breaks,
was recorded descriptively employing terms used in mineralogy. All of the
samples within each ceramic group have the same type of fracture surface, the
individual groups themselves differing significantly from one another. Group NI
sherds have a hackly fracture surface, samples in group N2 exhibit a granular-
earthy fracture, whilst those in group N3 present an earthy fracture surface
(fig. 4a-c).
Hardness
Tests were carried out to assess matrix hardness, i.e. the resistance offered by
the matrix to external mechanical factors aiming to scratch its surface. Hardness
was defined using the Mohs scalę of minerał hardness, hence the materials used