| Abelsonite | NiC₃₁H₃₂N₄ | Triclinic | 2.5 | — |
| Aerugite | Ni₈.₅(AsO₄)₂As⁵⁺O₈ | Trigonal | 4.0 | 5.85 g/cm³ |
| Ahlfeldite | NiSeO₃·2H₂O | Monoclinic | — | — |
| Akaganeite | (Fe³⁺,Ni²⁺)₈(OH,O)₁₆Cl₁.₂₅·nH₂O | Monoclinic | — | — |
| Allabogdanite | (Fe,Ni)₂P | Orthorhombic | — | — |
| Andreybulakhite | Ni(C₂O₄)·2H₂O | Monoclinic | — | — |
| Ankinovichite | (Ni,Zn)Al₄(V₅+O₃)₂(OH)₁₂ * 2.₅H₂O | Monoclinic | — | — |
| Annabergite | Ni₃(AsO₄)₂·8H₂O | Monoclinic | — | — |
| Argentopentlandite | Ag(Fe,Ni)₈S₈ | Cubic | — | — |
| Arsenohauchecornite | Ni₁₈Bi₃AsS₁₆ | Tetragonal | — | — |
| Asagiite | NiCu₄(SO₄)(OH)₆·6H₂O | — | — | — |
| Asbolane | Mn⁴⁺(O,OH)₂·(Co,Ni,Mg,Ca)ₓ(OH)₂ₓ·nH₂O | Hexagonal | — | — |
| Awaruite | Ni₃Fe | Cubic | — | — |
| Barkovite | Ni₁,₅Sn | Hexagonal | — | — |
| Barringerite | (Fe,Ni)₂P | Hexagonal | — | — |
| Bismutohauchecornite | Ni₉Bi₂S₈ | Tetragonal | — | — |
| Bonaccordite | Ni₂Fe³⁺O₂(BO₃) | Orthorhombic | 7.0 | — |
| Bottinoite | NiSb⁵⁺₂(OH)₁₂·6H₂O | — | 3.0 | — |
| Breithauptite | NiSb | Hexagonal | 5.5 | 8.76 g/cm³ |
| Brindleyite | (Ni,Al)₃(Si,Al)₂O₅(OH)₄ | Monoclinic | — | — |
| Bunsenite | NiO | Cubic | 5.5 | 6.76 g/cm³ |
| Butianite | Ni₆SnS₂ | Tetragonal | — | — |
| Cabrerite | NiMg₂(AsO₄)₂·8H₂O | Monoclinic | — | — |
| Carletonmooreite | Ni₃Si | Cubic | — | — |
| Carrboydite | (Ni₁-xAlx)(SO₄)x/₂(OH)₂ * nH₂O | Hexagonal | — | — |
| Cassidyite | Ca₂Ni(PO₄)₂·2H₂O | Triclinic | — | — |
| Chihmingite | Ni²⁺Al₂O₄ | Cubic | — | — |
| Cochromite | (Co,Ni,Fe)(Cr,Al)₂O₄ | Cubic | — | — |
| Comblainite | Ni₄Co³⁺₂(CO₃)(OH)₁₂·3H₂O | Trigonal | — | — |
| Crowningshieldite | (Ni₀.₉Fe₀.₁₀)S | Hexagonal | — | — |
| Decagonite | Al₇₁Ni₂₄Fe₅ | Quasicrystal | — | — |
| Dienerite | Ni₃As | Cubic | — | — |
| Djerfisherite | K₆(Fe,Cu,Ni)₂₅S₂₆Cl | Cubic | — | — |
| Donharrisite | Ni₃HgS₃ | Monoclinic | — | — |
| Droninoite | Ni₆Fe³⁺₂Cl₂(OH)₁₆·4H₂O | Trigonal | — | — |
| Dwornikite | Ni(SO₄)·H₂O | Monoclinic | — | — |
| Dymkovite | Ni(UO₂)₂(As³⁺O₃)₂·7H₂O | Monoclinic | — | — |
| Ernienickelite | NiMn⁴⁺₃O₇(H₂O)₃ | Trigonal | — | — |
| Falcondoite | Ni₄Si₆O₁₅(OH)₂·6H₂O | Orthorhombic | — | — |
| Ferhodsite | (Fe,Rh,Ni,Ir,Cu,Pt)₉S₈ | Tetragonal | — | — |
| Ferronickelplatinum | (Ni,Fe)Pt | Tetragonal | — | — |
| Fletcherite | Cu(Ni,Co)₂S₄ | Cubic | — | — |
| Garutiite | (Ni,Fe,Ir) | Hexagonal | 6.0 | — |
| Gaspéite | NiCO₃ | Trigonal | — | 4.43 g/cm³ |
| Gersdorffite | NiAsS | Cubic | 5.5 | 5.90 g/cm³ |
| Gillardite | Cu₃Ni(OH)₆Cl₂ | Trigonal | — | — |
| Glaukosphaerite | CuNi(CO₃)(OH)₂ | Monoclinic | 3.5 | — |
| Godlevskite | (Ni,Fe)₉S₈ | Orthorhombic | — | — |
| Guixiangite | NiBiS | Cubic | — | — |
| Haapalaite | (Fe²⁺,Ni)₂(Mg,Fe²⁺)₁.₆₁S₂(OH)₃.₂₂ | Hexagonal | — | — |
| Halamishite | Ni₅P₄ | Hexagonal | — | — |
| Hauchecornite | Ni₉BiSbS₈ | Tetragonal | — | — |
| Haxonite | (Fe,Ni)₂₃C₆ | Cubic | — | — |
| Hloušekite | (Ni,Co)Cu₄(AsO₄)₂(AsO₃OH)₂·9H₂O | Triclinic | — | — |
| Honessite | (Ni₁-xFe³⁺x)(OH)₂[SO₄]x/₂ * nH₂O | Trigonal | — | — |
| Honzaite | Ni₂(AsO₃OH)₂·5H₂O | Monoclinic | — | — |
| Horomanite | Fe₆Ni₃S₈ | Tetragonal | — | — |
| Hydrohonessite | (Ni₁-xFe³⁺x)(OH)₂(SO₄)x/₂ * nH₂O | Hexagonal | — | — |
| Hydrombobomkulite | (Ni,Cu)Al₄((NO₃)₂,SO₄)(OH)₁₂ * 13-₁₄H₂O | Monoclinic | — | — |
| Jamborite | Ni(OH,S,O)₂·nH₂O | Hexagonal | — | — |