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. 2017 Mar 1;13:393–404. doi: 10.3762/bjoc.13.42

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