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Table 2

Distribution of the mineralogical varieties according to the different sets considered on the AD-LAB test.

Mineralogical variety L/D > 20   Langer   D ≤ 0.25 μm   WHO   L > 0.5 μm  
Tremolite 13 7.6% 7 7.4% 5 8% 19 6.6% 22 6.3%
Magnesio-hornblende 2 1.2% 3 3.2% 2 3% 4 1.4% 7 2.0%
Magnesio-ferri-hornblende 30 17.4% 23 24.5% 9 15% 59 20.5% 71 20.3%
Ferro-ferri-hornblende 3 1.7% 1 1.1% 2 3% 2 0.7% 3 0.9%
Ferro-actinolite 3 1.7% 1 1.1% 2 3% 3 1.0% 4 1.1%
Actinolite 120 69.8% 59 62.8% 42 68% 199 69.1% 240 68.8%
Ferri-tschermakite 1 0.6% 0 0.0% 0 0% 2 0.7% 2 0.6%
Total No. of particles 172   94   62   288   349  

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