Table 5: of chert samples from the quarries in Triadi of Thessaloniki (Central Macedonia, Greece).

SamplesMean

Trd 1-125.025.125.0
Trd 1-223.423.523.4
Trd 1-423.623.823.7
Trd 1-526.026.126.0
Trd 2-124.224.424.3
Trd 3-126.126.026.0
Trd 3-225.826.025.9
Trd 5-222.522.322.4

Mean value