What's in crushed limestone dust?
Calcium carbonate (calcite), Calcium ion, Carbonate ion, Magnesium carbonate (dolomite component), Magnesium ion, Silicon dioxide (quartz/chert), Water (adsorbed surface moisture), Aluminium oxide (clay-derived), Kaolinite (clay mineral), Iron(III) oxide (hematite), Potassium ion, Calcium sulfate (gypsum/anhydrite), Sulfate ion, Sodium ion, Muscovite (mica), Iron(II) ion, Titanium dioxide (rutile/anatase trace), Manganese(II) ion, Phosphate ion (apatite-bound), Fluorapatite, Chloride ion, Strontium carbonate (strontianite substitution), Pyrite (iron disulfide), Barium sulfate (barite trace), Kerogen (residual organic carbon), Zinc ion, Calcium hydroxide (surface hydration film), Copper ion, Carbon dioxide (adsorbed), Uranium (trace, carbonate-hosted)
| Compound | Formula | SMILES |
|---|
| Calcium carbonate (calcite) |
|
C(=O)([O-])[O-].[Ca+2] |
| Calcium ion |
|
[Ca+2] |
| Carbonate ion |
|
C(=O)([O-])[O-] |
| Magnesium carbonate (dolomite component) |
|
[Mg+2].[O-]C([O-])=O |
| Magnesium ion |
|
[Mg+2] |
| Silicon dioxide (quartz/chert) |
|
O=[Si]=O |
| Water (adsorbed surface moisture) |
|
O |
| Aluminium oxide (clay-derived) |
|
O=[Al]O[Al]=O |
| Kaolinite (clay mineral) |
|
|
| Iron(III) oxide (hematite) |
|
O=[Fe]O[Fe]=O |
| Potassium ion |
|
[K+] |
| Calcium sulfate (gypsum/anhydrite) |
|
[Ca+2].[O-]S([O-])(=O)=O |
| Sulfate ion |
|
[O-]S(=O)(=O)[O-] |
| Sodium ion |
|
[Na+] |
| Muscovite (mica) |
|
|
| Iron(II) ion |
|
[Fe+2] |
| Titanium dioxide (rutile/anatase trace) |
|
O=[Ti]=O |
| Manganese(II) ion |
|
[Mn+2] |
| Phosphate ion (apatite-bound) |
|
[O-]P([O-])([O-])=O |
| Fluorapatite |
|
[O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2] |
| Chloride ion |
|
[Cl-] |
| Strontium carbonate (strontianite substitution) |
|
[Sr+2].[O-]C([O-])=O |
| Pyrite (iron disulfide) |
|
[Fe+2].[S-][S-] |
| Barium sulfate (barite trace) |
|
[Ba+2].[O-]S([O-])(=O)=O |
| Kerogen (residual organic carbon) |
|
|
| Zinc ion |
|
[Zn+2] |
| Calcium hydroxide (surface hydration film) |
|
[Ca+2].[OH-].[OH-] |
| Copper ion |
|
[Cu+2] |
| Carbon dioxide (adsorbed) |
|
O=C=O |
| Uranium (trace, carbonate-hosted) |
|
[U] |
source: ai · model: GPT-5 · first answered: 2026-09-04 15:03:58
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