Table 2.
Adsorption of RNA on all the natural minerals tested in this study.
| Family | Mineral | Adsorption |
| carbonates | magnesite, MgCO3 | 26% |
| calcite, CaCO3 aragonite, CaCO3 |
47% 76% |
|
| strontianite, SrCO3 | 83% | |
| witherite, BaCO3 | 94% | |
| rhodochrosite, MnCO3 | 11% | |
| smithsonite, ZnCO3 | 5% | |
| sulfates | gypsum, CaSO4 | 20% |
| celestine, SrSO4 | 49% | |
| baryte, BaSO4 | 59% | |
| phosphates & vanadates (apatite family) | apatite, Ca2(PO4)3Cl | 28% |
| vanadinite, Pb5(V/AsO4)3Cl | 72% | |
| vivianite, Fe3(PO4)2 | 12% | |
| arsenates | erythrite, Co3(AsO4)2 | 92% |
| adamite, Zn2AsO4OH | 2% | |
| fluorites | purple fluorite, CaF2 | no adsorption |
| green fluorite, CaF2 + Fe or Sm inclusions | 25% | |
| borates | colemanite, CaB3O4(OH)3 | 31% |
| silicates | opal, SiO2 | 27% |
| talc, Mg3Si4O10(OH)2 | 95% | |
| topaz, Al2SiO4(F,OH)2 | 33% | |
| amazonite, KAlSi3O8 | 31% | |
| mica, KAl3Si3O10(OH)2 | 22% | |
| beryl, Be3Al2Si6O18 | 17% | |
| olivine, (Mg,Fe)2SiO4 | 12% | |
| obsidian, SiO2+MgO+Fe3O4 | 8% | |
| danburite, CaB2(SiO4)2 | no adsorption | |
| tourmaline, (Na,Ca)(Mg,Li,Al,Fe2+)3Al6(BO3)3Si6O18(OH)4 | no adsorption | |
| agate, SiO2 | no adsorption | |
| herkimer Diamond, SiO2 | no adsorption | |
| oxides | pyrite, FeS2 | 95% |
| hematite, Fe2O3 | 30% | |
| rutile, TiO2 | 21% | |
| olivine, (Mg,Fe)2SiO4 | 12% | |
| magnetite, Fe3O4 | no adsorption | |