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Table 1 Composition of the natural pumice used in our experiments [41]

From: Fabrication of naturel pumice/hydroxyapatite composite for biomedical engineering

SiO2 (%)

Al2O3 (%)

Fe2O3 (%)

MgO (%)

CaO (%)

Na2O (%)

K2O (%)

TiO2 (%)

SO3 (%)

Other (%)

68

16.86

2.72

0.65

1.2

3.58

5.71

0.34

0.12

0.86