Micron
 |
|
|
| Micron Size | Approx. No. of particles per carat |
Size in Inches |
| 60 | 264,000 | .0024 |
| 45 | 620,000 | .0018 |
| 30 | 2,046,000 | .0012 |
| 15 | 16,960,000 | .0006 |
| 9 | 78,600,000 | .00035 |
| 6 | 262,000,000 | .00024 |
| 3 | 2,050,000,000 | .00012 |
| 1 | 62,000,000,000 | .00014 |
Note: 1 CARAT = 0.2 Grams 5 CARATS = 1 Gram
1 MICRON = 1/1,000mm 1 POUND = 454 Grams (2270 CTS)