Crystal type | Acronym | Particle diameter 10th percentile (nm)a | Particle diameter 50th percentile (nm)a | Particle diameter 90th percentile (nm)a | Surface area (m2/g)b |
---|---|---|---|---|---|
Synthetic as-grown crystals in submicron size | n-Qz-syn | 174 | 276 | 408 | 6.2 |
Synthetic as-grown crystals in micron size | μ-Qz-syn | 405 | 904 | 2520 | 0.3 |
Fractured micron size synthetic crystals | μ-Qz-syn-f | 409 | 914 | 1960 | 9.5 |
Mineral quartz dust (positive control) | Qz-f | 285 | 704 | 1290 | 6.1 |