The breed consists of a mixture clay and detrital material. Detrital material predominates, present at about 75%, distributed in breed does not uniformly. Detritus angular and angular-rounded shape, the size of 0.1 mm and less represented by quartz, feldspar, calcite, limestone, entirely ferruginous and chloritized debris. Note also that detrital of amphibole, pyroxene, epidote, biotite and hydrated leaves gelified plant residues. The magnetite is present as an impurity.
Clay mass of brown color composed of pelitic particles having a refractive index more than Canadian balsam, and both high and low bire- fringence, represented, apparently, with an admixture of kaolinite hydromica, pelitomorphic calcite, finely divided silica-alumina dispersed and scattered iron hydroxides. Weak gypsum, plaster develops unevenly, nests of up to 0.2 mm. Nests stacked platelets of plaster the size of in hundredths fraction of a millimeter. In consequence of the staining of the sample suspension methylene blue solution pelitic fractions were painted in light purple color, which when added potassium chloride coloring did not change. This indicates qualitatively for the presence of a kaolinite sample (Table 1)
Table 1- Mineral composition of the sample of field Besaryk
№ |
Minerals |
Content, % |
1 |
2 |
3 |
1 |
Calcite |
25,0 |
2 |
Quartz |
23,5 |
3 |
Feldspar |
20,1 |
4 |
Halloysite + kaolinite |
12,6 |
5 |
Chlorite |
6,7 |
6 |
Hydromica |
3,0 |
7 |
Amphiboles |
2,0 |
8 |
Biotite |
2,0 |
9 |
Gypsum |
0,7 |
10 |
Rutile |
0,6 |
11 |
Magnetite |
0,5 |
12 |
Phosphates |
0,4 |
13 |
Epidote |
unit value |
14 |
Pyroxene |
« |
15 |
Iron hydroxides |
2,9 |
Total: |
25,0 |
According to the chemical analysis of the sample S0зcom= 0,35%. Minerals containing sulphide sulfur is absent. Sulfate sulfur is present in microscopic plates of plaster.
Investigated raw material represented with clay composed of pelitic particles of size 0.01 mm (= 75%). Pelitic material (particle size of 0.01 mm or less) is represented by kaolinite-halloysite in mixtures with hydromica and impurity pelitomorphic calcite, finely ground aluminum silicates and iron hydroxides (tabl.2-3). Type of clay - hydromica - halloysite - kaolinitic. Elements: Cd, Sb, Bi, Hg, В, Tl, Та, La, Au, Се, Yb, In, U, Gd, Hf - less than detection limit.
Table 2 - Results of spectral analysis of clay (semi-quantitative)
Elements |
Content, % |
|||
Sample1 |
Sample2 |
SampleЗ |
Sample4 |
|
Ibata |
Urangay |
Sauran |
Besaryk |
|
Sr |
|