Table 1: Results obtained from the identification tests.

Materials	Touch /Smell/ Washing Test	Cigar Test	Pellet Test	Bottle Test
S1	- No smell ; - Very cohesive	Average value of the lengths: 7.13 cm	- High shrinkage; - Earth crashes with difficulty between the fingers	Presence of all the elements
S2	- No smell ; - Less cohesive ; -Abrasive sensation.	Average value of the lengths: 5.46 cm	- Low shrinkage ; - Earth crashes easily between the fingers	Absence of all the elements