| Type of Material | Resistivity Value (Ω∙m) | Type of Material | Resistivity Value (Ω∙m) |
| IGNEOUS ROCK |
|
|
|
| Diorite | 104 - 105 | Peridotite | 3 × 103 (wet) - 6.5 × 103 (dry) |
| Basalt | 10 - 107 or 103 - 106 | Andesite | 4.5 × 104 (wet) - 1.7 × 102 (dry) |
| Lava | 300 - 10,000 | Tuff | 2 × 103 (wet) - 105 (dry) |
| Granite | 3 × 102 - 106 or 102 - 106 | Gabbro | 103 - 106 |
| METAMORPIC ROCK |
|
|
|
| Slate | 3 × 102 - 4 × 107 | Gneiss | 6.8 × 104 (wet) - 3 × 106 (dry) |
| Marble | 102 - 2.5 × 108 | Schist | 10 - 104 |
| Hornfels | 8 × 103 (wet) - 6 × 107 (dry) | Quartzite | 10 - 2 × 108 |
| Graphite Schist | 10 - 102 | Slate Group | 200 - 2000 |
| SEDIMENTARY ROCK |
|
|
|
| Alluvium & sand | 10 - 800 or 4 - 800 | Marl | 20 - 200 or 8 - 100 or 3 - 70 |
| Dolomite | 102 - 104 or 3.5 × 102 - 5 × 103 | Claystone | 10 - 108 or 8 - 100 |
| Sand | 1 - 100 or 100 - 600 | Clay | 1 - 100 or 2 - 20 or 3 - 30 |
| Argillites | 10 - 8 × 102 | Conglomerates | 2 × 103 - 104 or 100 - 500 |
| Shale | 300 - 3000 or 8 - 100 | Alluvium | 10 - 800 |
| Limestone | 50 - 107 or 50 - 400 or 300 - 10,000 | Gravel | 100 - 600 |
| Mudstone | 20 - 200 | Sand and gravel | 100 - 1000 or 1000 - 10,000 |
| Chert group | 200 - 2000 | Argillaceous sand | 5 - 50 |
| MINERAL |
|
|
|
| Copper (Cu) | 1.7 × 10−8 | Gold (Au) | 2.4 × 10−8 |
| Silver (Ag) | 1.6 × 10−8 | Graphite (C) | 10−3 |
| Iron (Fe) | 10−7 | Manganese (Mn) | 48.2 × 10−8 |
| Hematite (Fe2O3) | 10−2 - 106 | Calcite (CaCO3) | 5.5 × 1013 |
| Quartz (SiO2) | 4 × 1010 | Aluminum (Al) | 2.65 × 10−8 |
| Bauxite (Al2H2O4) | 2 × 102 - 6 × 10−3 | Pyrite (FeS2) | 3 × 10−1 |
| Galena (PbS) | 2 × 10−3 | Sphalerite (ZnS) | 100 |
| SOIL & FLUID |
|
|
|
| Moist bedrock | 150 - 300 | Top soil | 50 - 100 |
| Sandy silt soil | 15 - 150 | Brackish water | 0.3 - 1 |
| Sea water | 0.2 | Salt water | 0.05 - 0.2 or 0.5 - 5 or 0.5 - 1 |
| Sand and gravel containing salt water | 0.5 - 5 | Sand and gravel containing fresh water | 50 - 500 |
| Soil | 1 - 10 | Surface water | 80 - 200 or 30 - 3 × 103 |
| Groundwater | 30 - 100 or 40 - 6 × 102 or 10 - 100 | Clay and soil | 1 - 10,000 |
| Fresh water | 5 - 100 | Oil sand | 4 - 800 |