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Most of the Martian analog samples in this
investigation have been measured using a Bartington Instruments magnetic
susceptibility meter that measures at 465 Hz and 4,650 Hz. The Bartington
Instruments magnetic susceptibility meter (MS2 Meter) and coil (MS2B) were
donated to the department by Marathon Oil (technology services). The
analog samples were
loaded into 10 cc cubes and placed in the same coil for both frequency measurements. To increase data quality, the measurements were repeated 5 times and averaged. The figure below shows the wide range of magnetic susceptibilities (in SI) and the table provides actual values.
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| Magnetic Susceptibility in m3/kg | |||||
| Sample Name | Sample ID | 465 Hz | StDev | 4650 Hz | StDev |
| HI1 | HI1 | 9.9E-06 | 2.3E-08 | 9.5E-06 | 2.8E-08 |
| HI2 | HI2 | 5.9E-06 | 1.8E-08 | 5.7E-06 | 1.4E-08 |
| HI3 | HI3 | 3.0E-06 | 1.2E-08 | 3.0E-06 | 2.6E-08 |
| HI4 | HI4 | 4.8E-05 | 1.1E-07 | 4.7E-05 | 1.1E-07 |
| HI5 | HI5 | 8.6E-06 | 4.1E-08 | 8.2E-06 | 2.7E-08 |
| HI6 | HI6 | 1.1E-06 | 2.1E-08 | 1.0E-06 | 2.9E-08 |
| HI7 | HI7 | 5.7E-06 | 3.6E-08 | 5.5E-06 | 0.0E+00 |
| HI8 | HI8 | 5.9E-05 | 8.6E-08 | 5.1E-05 | 8.8E-08 |
| HI9 | HI9 | 3.6E-05 | 4.7E-08 | 3.3E-05 | 1.1E-07 |
| HI10 | HI10 | 2.8E-05 | 1.5E-08 | 2.5E-05 | 2.8E-08 |
| HI11 | HI11 | 2.1E-05 | 5.9E-08 | 1.9E-05 | 1.1E-08 |
| HI12 | HI12 | 3.9E-06 | 1.5E-08 | 3.9E-06 | 1.6E-08 |
| HI13 | HI13 | 4.7E-06 | 3.0E-08 | 4.6E-06 | 2.3E-08 |
| HI14 | HI14 | 9.6E-06 | 1.9E-08 | 9.3E-06 | 1.8E-08 |
| Pahala Ash | PahAsh | 2.4E-06 | 3.0E-08 | 2.3E-06 | 1.8E-08 |
| Pu'u Huluhulu Horizon B | PuHulAsh | 1.4E-05 | 2.9E-08 | 1.3E-05 | 9.8E-09 |
| Pu'u Huluhulu Horizon C | PuHulCin | 8.2E-06 | 2.1E-08 | 8.2E-06 | 2.1E-08 |
| JSC-1 | JSC1 | 8.6E-06 | 1.8E-08 | 8.3E-06 | 1.0E-07 |
| Pu'u Nene Horizon B | PNeHIB | 8.2E-06 | 2.6E-08 | 8.0E-06 | 3.6E-08 |
| Pu'u Nene Horizon C | PNeHIC | 7.2E-06 | 1.7E-08 | 7.1E-06 | 2.8E-08 |
| Pu'u Nene Horizon D | PNeHID | 8.4E-06 | 2.4E-08 | 8.4E-06 | 2.0E-08 |
| Hematite | Hem | 2.1E-04 | 6.7E-09 | 2.1E-04 | 7.4E-09 |
| Hematite Orenburg | HemOr | 1.6E-06 | 2.0E-07 | 1.6E-06 | 5.2E-07 |
| Magnetite | Magn | 2.0E-04 | 5.4E-06 | 1.8E-04 | 2.0E-06 |
| Gold Ochre | Gochr | 1.7E-07 | 1.8E-08 | 1.7E-07 | 2.9E-08 |
| Goethite (Brown Ochre) | Goeth | 5.5E-07 | 1.6E-08 | 5.3E-07 | 4.2E-08 |
| Jarosite | Jaro | 3.6E-07 | 9.5E-09 | 3.7E-07 | 1.8E-08 |
| Sienna | Sienna | 2.6E-07 | 1.6E-08 | 2.5E-07 | 1.8E-08 |
| Red Ochre (warm) | Rochr | 1.3E-07 | 7.5E-09 | 1.2E-07 | 1.2E-08 |
| Green Sand Beach | GrSaBeHI | 4.7E-07 | 6.9E-09 | 4.8E-07 | 5.7E-09 |
| Grey Hematite (Michigan) | GHKewMI | 1.9E-06 | 1.9E-08 | 1.9E-06 | 1.5E-08 |
| Grey Hematite (Oxidized; Mexico) | GHSieMME | 3.6E-07 | 6.9E-09 | 3.5E-07 | 7.1E-09 |
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