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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Nierite | Si₃N₄ | Trigonal | — | 3.20 g/cm³ |
| Nifontovite | Ca₃B₆O₆(OH)₁₂(H₂O)₂ | Monoclinic | — | — |
| Nigelcookite | PbFe²⁺₂V³⁺₂(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Nikischerite | Fe²⁺₆Al₃(OH)₁₈[Na(H₂O)₆](SO₄)₂ * 6H₂O | — | 2.0 | — |
| Nikmelnikovite | Ca₁₂Fe²⁺Fe³⁺₃Al₃(SiO₄)₆(OH)₂₀ | Trigonal | — | — |
| Niksergievite | Ba₂Al₃(Si,Al)₄O₁₀(CO₃)(OH)₆·nH₂O | Monoclinic | — | — |
| Nimite | (Ni,Mg,Al)₆(Si,Al)₄O₁₀(OH)₈ | Monoclinic | 3.0 | — |
| Ningyoite | (U,Ca,Ce)₂(PO₄)₂·1-2H₂O | — | — | — |
| Niningerite | MgS | Cubic | — | 2.65 g/cm³ |
| Niobobaotite | — | Tetragonal | — | — |
| Niobocarbide | (Nb,Ta)C | Cubic | — | — |
| Nioboheftetjernite | — | Monoclinic | — | — |
| Nioboholtite | (Nb₀.₆☐₀.₄)Al₆BSi₃O₁₈ | Orthorhombic | — | — |
| Nioboixiolite-(Fe²⁺) | Nb₂Fe²⁺O₆ | Orthorhombic | — | — |
| Nioboixiolite-(Fe³⁺) | — | Orthorhombic | — | — |
| Nioboixiolite-(◻) | (Nb₀,₈☐₀,₂)⁴⁺O₂ | Orthorhombic | — | — |
| Niobokupletskite | K₂NaMn²⁺₇(Nb,Ti)(Si₄O₁₂)₂O₂(OH)₄(O,F) | — | — | — |
| Niobophyllite | (K,Na)₃(Fe,Mn)₆(Nb,Ti)₂Si₈(O,OH,F)₃₁ | — | — | — |
| Nipalarsite | Ni₈Pd₃As₄ | — | — | — |
| Nipeiite-(Ce) | Ce₉Fe³⁺(SiO₄)₆[SiO₃(OH)](OH)₃ | Trigonal | — | — |
| Nisbite | NiSb₂ | Orthorhombic | — | 7.93 g/cm³ |
| Nishanbaevite | KAl₂O(AsO₄)(SO₄) | Orthorhombic | — | — |
| Nisnite | Ni₃Sn | Cubic | — | 9.75 g/cm³ |
| Nissonite | Cu₂Mg₂(PO₄)₂(OH)₂·5H₂O | Monoclinic | — | — |
| Nitratine | NaNO₃ | Trigonal | — | 2.35 g/cm³ |
| Nitroplumbite | [Pb₄(OH)₄](NO₃)₄ | Monoclinic | — | — |
| Nitscheite | — | Monoclinic | — | — |
| Niveolanite | NaBe(CO₃)(OH)·2H₂O | Tetragonal | — | — |
| Nixonite | Na₂Ti₆O₁₃ | Monoclinic | — | 3.50 g/cm³ |
| Nizamoffite | Mn²⁺Zn₂(PO₄)₂(H₂O)₄ | Orthorhombic | — | — |
| Nobleite | CaB₆O₉(OH)₂·3H₂O | Monoclinic | — | — |
| Nollmotzite | Mg[U₅+(U₆+O₂)₂O₄F₃]*₄H₂O | Monoclinic | — | — |
| Nolzeite | NaMn₂[Si₃BO₉](OH)₂·2H₂O | Triclinic | — | — |
| Nontronite | Na₀.₃Fe₂((Si,Al)₄O₁₀)(OH)₂ * nH₂O | Monoclinic | — | — |
| Noonkanbahite | NaKBaTi₂(Si₄O₁₂)O₂ | Orthorhombic | — | — |
| Nordgauite | MnAl₂(PO₄)₂(F,OH)₂·5.5H₂O | Triclinic | — | — |
| Nordstrandite | Al(OH)₃ | Monoclinic | — | — |
| Norilskite | (Pd,Ag)₂₋ₓPb (0.08 ≤ x ≤ 0.11) | Trigonal | — | — |
| Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si₂O₇)OF | Monoclinic | — | — |
| Norrishite | KLiMn³⁺₂(Si₄O₁₀)O₂ | — | — | — |
| Norsethite | BaMg(CO₃)₂ | Trigonal | 3.5 | — |
| Northstarite | — | Hexagonal | — | — |
| Novgorodovaite | Ca₂(C₂O₄)Cl₂·2H₂O | Monoclinic | 2.5 | — |
| Novikovite | (NH₄)₄(Mo⁶⁺₂Mo⁵⁺₂)₄O₈(SO₄)₅ | — | — | — |
| Novodneprite | AuPb₃ | Tetragonal | — | — |
| Novograblenovite | (NH₄)MgCl₃·6H₂O | Monoclinic | — | — |
| Novákite | (Cu,Ag)₂₁As₁₀ | Monoclinic | — | — |
| Nowackiite | Cu₆Zn₃As₄S₁₂ | Trigonal | — | — |
| Nsutite | Mn²⁺ₓMn⁴⁺₁₋ₓO₂₋₂ₓ(OH)₂ₓ | — | — | — |
| Nuffieldite | Cu₁.₄Pb₂.₄Bi₂.₄Sb₀.₂S₇ | — | — | — |
| Nukundamite | Cu₃.₄Fe₀.₆S₄ | Trigonal | 3.0 | — |
| Nullaginite | Ni₂CO₃(OH)₂ | Monoclinic | — | — |
| Numanoite | Ca₄CuB₄O₆(OH)₆(CO₃)₂ | Monoclinic | — | — |
| Nuragheite | Th(MoO₄)₂·H₂O | Monoclinic | — | — |
| Nuwaite | Ni₆GeS₂ | Tetragonal | — | — |
| Nybergite | Ca₄Sc₃Sn(Si₂O₇)(Si₂O₆OH)₃ | Triclinic | — | — |
| Nyerereite | Na₂Ca(CO₃)₂ | Orthorhombic | 2.5 | — |
| Nyholmite | Cd₃Zn₂(AsO₃OH)₂(AsO₄)₂·4H₂O | Monoclinic | — | — |
| Nöggerathite-(Ce) | — | Orthorhombic | — | — |
| O'danielite | H₂NaZn₃(AsO₄)₃ | Monoclinic | 3.0 | — |
| Oberthürite | — | Cubic | — | — |
| Oboniobite | Mg₄Nb₂O₉ | Trigonal | — | 4.35 g/cm³ |
| Obradovicite-NaCu | [Na₂(H₂O)₁₇Cu(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₄(OH)₃] | Orthorhombic | — | — |
| Obradovicite-NaNa | [Na₂(H₂O)₁₆Na(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₃(OH)₄] | Orthorhombic | — | — |
| Odigitriaite | CsNa₅Ca₅[Si₁₄B₂O₃₈]F₂ | Monoclinic | — | — |
| Odinite | (Fe,Mg,Al,Fe,Ti,Mn)₂.₄((Si,Al)₂O₅)(OH)₄ | Monoclinic | — | — |
| Odintsovite | K₂Na₄Ca₃Ti₂Be₄Si₁₂O₃₈ | Orthorhombic | — | — |
| Oenite | CoSbAs | Orthorhombic | — | — |
| Offretite | KCaMg(Si₁₃Al₅)O₃₆·15H₂O | Hexagonal | 4.0 | — |
| Oftedalite | KSc₂☐₂Be₃Si₁₂O₃₀ | Hexagonal | 6.0 | — |
| Ogdensburgite | Ca₂Fe³⁺₄(Zn,Mn²⁺)(AsO₄)₄(OH)₆·6H₂O | — | — | — |
| Ognitite | NiBiTe | Trigonal | — | — |
| Ohmilite | Sr₃(Ti,Fe³⁺)(Si₂O₆)₂(O,OH)·2H₂O | Monoclinic | — | — |
| Ohtaniite | Mg₃(Si₀,₅◻₀,₅)Si₂O₈ | Orthorhombic | — | — |
| Ojuelaite | ZnFe³⁺₂(AsO₄)₂(OH)₂·4H₂O | Monoclinic | 3.0 | — |
| Okayamalite | Ca₂B(BSiO₇) | Tetragonal | — | — |
| Okhotskite | Ca₂Mn²⁺Mn³⁺₂(Si₂O₇)(SiO₄)(OH)₂·H₂O | Monoclinic | — | — |
| Okieite | Mg₃[V₁₀O₂₈]·28H₂O | Triclinic | — | — |
| Okruginite | Cu₂SnSe₃ | Monoclinic | — | — |
| Okruschite | Ca₂Mn²⁺₅Be₄(AsO₄)₆(OH)₄·6H₂O | Monoclinic | 3.5 | — |