Summary of both my tests and those of Chris and Meredith of the properties of graphite pencil leads. YES means diamagnetic. NO means paramagnetic.
| Pentel Super Polymer, | |||
| 0.35 | HB | YES | Japan |
| 0.35 | B&2B | YES | Japan |
| 0.5 | B&2B | YES | Japan |
| 0.5 | HB | YES | Japan |
| 0.5 | F | YES | Japan |
| 0.7 | HB | (1 box YES, 3 boxes NO) | Japan |
| 0.7 | B | YES | Japan |
| 0.9 | 2B | YES | 15/$1 at McGuckin, 2524 Arapahoe Ave., Boulder, CO |
| 0.9 | HB | NO | Japan |
| 0.9 | B | NO | Japan |
| Faber-Castell (1.4 B labeled Brazil) http//www.faber-castell.de/ |
|||
| 0.35 | ? | Germany | |
| 0.5 | Super Polymer | ? | Germany |
| 0.7 | 2B | YES | Germany |
| 0.7 | ? | Germany | |
| 0.9 | ? | Germany | |
| 1.4 | B,Super Polymer leads for their "E Motion Pencils" | YES (very good) | 6/$2.88 at Meninger 499 Broadway, Den, CO |
| 2.0 | B & 2B | NO | Germany |
| Staedtler (Marsmicro Polycarbon) Germany http://www.staedtler.com |
|||
| 0.5 | ? | Germany | |
| 0.7 | ? | Germany | |
| 0.9 | B & 2B | YES (very good) | No longer made. |
| 0.9 | HB | YES (less than 2B & B) | No longer made. |
| 2.0 | B & 2B | NO | Germany |
| Derwent | |||
| 7.0 | 8B | NO | |
| Stanford | |||
| 0.5 | HB | YES | Japan |
| 0.9 | HB (Sphere TM) | NO | Korea |
| Pilot (NEO-X) | |||
| 0.7 | HB | YES | Japan |
| MonAmi | |||
| 0.7 | HB | NO | Korea |
| School Time | |||
| 0.5 | HB | NO | China |