| D'ansite | Na₂₁Mg(SO₄)₁₀Cl₃ | Cubic | — | — |
| D'ansite-(Fe) | Na₂₁Fe(SO₄)₁₀Cl₃ | Cubic | — | — |
| D'ansite-(Mn) | Na₂₁Mn(SO₄)₁₀Cl₃ | Cubic | — | — |
| Dachiardite-Ca | Ca₂(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dachiardite-K | K₄(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dachiardite-Na | Na₄(Si₂₀Al₄)O₄₈·13H₂O | Monoclinic | — | — |
| Dacostaite | K(Mg₂Al)[Mg(H₂O)₆]₂(AsO₄)₂F₆·2H₂O | Monoclinic | — | — |
| Dadsonite | Pb₂₃Sb₂₅S₆₀Cl | Triclinic | 2.5 | — |
| Dagenaisite | Zn₃Te⁶⁺O₆ | — | — | — |
| Daliranite | PbHgAs₂S₆ | Monoclinic | — | — |
| Dalnegorskite | Ca₅Mn(Si₃O₉)₂ | Triclinic | — | — |
| Dalnegroite | Tl₄Pb₂(As,Sb)₂₀S₃₄ | Triclinic | — | — |
| Dalyite | K₂ZrSi₆O₁₅ | — | 7.5 | — |
| Damaraite | Pb₃O₂(OH)Cl | Orthorhombic | — | — |
| Damiaoite | PtIn₂ | Cubic | — | 10.70 g/cm³ |
| Danalite | Be₃Fe²⁺₄(SiO₄)₃S | Cubic | — | — |
| Danbaite | CuZn₂ | Cubic | — | — |
| Danburite | CaB₂Si₂O₈ | Orthorhombic | — | — |
| Danielsite | (Cu,Ag)₁₄HgS₈ | Orthorhombic | — | — |
| Dantopaite | Ag₅Bi₁₃S₂₂ | Monoclinic | — | — |
| Daomanite | CuPtAsS₂ | Orthorhombic | — | 7.39 g/cm³ |
| Daqingshanite-(Ce) | (Sr,Ca,Ba)₃(Ce,La)(CO₃)₃₋ₓ(PO₄)(OH,F)₂ₓ | Trigonal | — | — |
| Darapiosite | KNa₂Mn₂(Li₂ZnSi₁₂)O₃₀ | — | 5.0 | — |
| Darapskite | Na₃(SO₄)(NO₃)·H₂O | Monoclinic | 2.5 | — |
| Dargaite | BaCa₁₂(SiO₄)₄(SO₄)₂O₃ | Trigonal | — | — |
| Darrellhenryite | Na(Al₂Li)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.0 | — |
| Dashkovaite | Mg(HCOO)₂·2H₂O | Monoclinic | 1.0 | 1.75 g/cm³ |
| Datolite | CaB(SiO₄)(OH) | Monoclinic | — | — |
| Daubréeite | BiO(OH) | — | — | — |
| Daubréelite | FeCr₂S₄ | Cubic | — | 3.81 g/cm³ |
| Davanite | K₂TiSi₆O₁₅ | — | — | — |
| Davemaoite | CaSiO₃ | Cubic | — | 2.90 g/cm³ |
| Davidbrownite-(NH4) | (NH₄)₅(V₄+O)₂(C₂O₄)[PO₂.₇₅(OH)₁.₂₅]₄·3H₂O | Monoclinic | — | — |
| Davidite-(Ce) | Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈ | — | — | — |
| Davidite-(La) | La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈ | — | — | — |
| Davidlloydite | Zn₃(AsO₄)₂·4H₂O | Triclinic | — | 3.66 g/cm³ |
| Davidsmithite | (Ca,☐)₂Na₆Al₈Si₈O₃₂ | Hexagonal | — | — |
| Davinciite | Na₁₂K₃Ca₆Fe²⁺₃Zr₃(Si₂₆O₇₃OH)Cl₂ | Trigonal | — | — |
| Davisite | CaScAlSiO₆ | Monoclinic | — | — |
| Davreuxite | Mn²⁺Al₆Si₄O₁₇(OH)₂ | Monoclinic | — | — |
| Davyne | (Na,Ca,K)₈(Si,Al)₁₂O₂₄(Cl,SO₄,CO₃)₂₋₃ | Hexagonal | — | — |
| Dawsonite | NaAl(CO₃)(OH)₂ | Orthorhombic | 3.0 | 2.48 g/cm³ |
| Deanesmithite | — | Triclinic | — | — |
| Debattistiite | Ag₉Hg₀.₅As₆S₁₂Te₂ | Triclinic | — | — |
| Decagonite | Al₇₁Ni₂₄Fe₅ | Quasicrystal | — | — |
| Decrespignyite-(Y) | Y₄Cu(CO₃)₄Cl(OH)₅·2H₂O | Monoclinic | — | — |
| Deerite | (Fe,Mn)₆(Fe,Al)₃[Si₆O₁₇]O₃(OH)₅ | — | — | — |
| Defernite | Ca₆(CO₃)₂-x(SiO₄)x(OH)₇(Cl,OH)₁-₂x (x<₀.₅) | Orthorhombic | — | — |
| Dekatriasartorite | TlPb₅₈As₉₇S₂₀₄ | Monoclinic | — | — |
| Delafossite | Cu¹⁺Fe³⁺O₂ | Trigonal | — | — |
| Delchiaroite | Cu₃I(CH₃S)₂ | Orthorhombic | — | — |
| Delhayelite | K₇Na₃Ca₅Al₂Si₁₄O₃₈F₄Cl₂ | — | — | — |
| Delhuyarite-(Ce) | Ce₄Mg(Fe³⁺₂W)☐(Si₂O₇)₂O₆(OH)₂ | Monoclinic | — | — |
| Deliensite | Fe²⁺(UO₂)₂(SO₄)₂(OH)₂·7H₂O | Orthorhombic | — | — |
| Delindeite | Ba₂Ti₂(Na₂☐)Ti(Si₂O₇)₂(OH)₂(H₂O)₂O₂ | Monoclinic | — | — |
| Dellagiustaite | V²⁺Al₂O₄ | Cubic | — | — |
| Dellaite | Ca₆(Si₂O₇)(SiO₄)(OH)₂ | Triclinic | — | — |
| Deloneite | (Na₀.₅REE₀.₂₅Ca₀.₂₅)(Ca₀.₇₅REE₀.₂₅)Sr₁.₅(CaNa₀.₂₅REE₀.₂₅)(PO₄)₃F₀.₅(OH)₀.₅ | — | — | — |
| Deloryite | Cu₄(UO₂)Mo₂O₈(OH)₆ | Monoclinic | — | — |
| Delrioite | Sr(V⁵⁺O₃)₂·4H₂O | Monoclinic | — | — |
| Deltalumite | (Al₀.₆₇☐₀.₃₃)Al₂O₄ | Tetragonal | — | — |
| Deltanitrogen | N | Orthorhombic | — | — |
| Delvauxite | CaFe³⁺₄(PO₄)₂(OH)₈·4-5H₂O (?) | Amorphous | — | — |
| Demagistrisite | BaCa₂Mn³⁺₄(Si₃O₁₀)(Si₂O₇)(OH)₄·3H₂O | Orthorhombic | — | — |
| Demartinite | K₂SiF₆ | Hexagonal | 3.0 | 2.98 g/cm³ |
| Demesmaekerite | Pb₂Cu₅(UO₂)₂(Se⁴⁺O₃)₆(OH)₆·2H₂O | Triclinic | — | — |
| Demicheleite-(Br) | BiSBr | Orthorhombic | — | 6.21 g/cm³ |
| Demicheleite-(Cl) | BiSCl | Orthorhombic | — | 5.65 g/cm³ |
| Demicheleite-(I) | BiSI | Orthorhombic | — | — |
| Dendoraite-(NH4) | — | Monoclinic | — | — |
| Denisovite | K₁₄+x(Ca,Na,Mn,Fe)₄₈[Si₆₀O₁₆₂]F₁₆(Ox,OH₄-x)*₂H₂O | Monoclinic | — | — |
| Denningite | CaMn²⁺Te⁴⁺₄O₁₀ | — | — | — |
| Depmeierite | Na₈(Al₆Si₆O₂₄)(PO₄,CO₃)₁-x * 3H₂O (x<₀.₅) | Hexagonal | — | — |
| Derbylite | Fe³⁺₄Ti⁴⁺₃Sb³⁺O₁₃(OH) | Monoclinic | — | — |
| Derriksite | Cu₄(UO₂)(Se⁴⁺O₃)₂(OH)₆ | — | — | — |
| Dervillite | Ag₂AsS₂ | Monoclinic | — | — |
| Desautelsite | Mg₆Mn³⁺₂(CO₃)(OH)₁₆·4H₂O | Trigonal | — | — |
| Descloizite | PbZn(VO₄)(OH) | Orthorhombic | — | 6.21 g/cm³ |
| Despujolsite | Ca₃Mn⁴⁺(SO₄)₂(OH)₆·3H₂O | Hexagonal | 2.5 | — |
| Dessauite-(Y) | Sr(Y,U,Mn)(Ti,Fe,Cr,V)₁₈(O,OH)₃₈ | Trigonal | — | — |
| Destinezite | Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O | Triclinic | — | — |
| Deveroite-(Ce) | Ce₂(C₂O₄)₃·10H₂O | Monoclinic | — | — |
| Devilliersite | Ca₄Ca₂Fe³⁺₁₀O₄[(Fe³⁺₁₀Si₂)O₃₆] | Triclinic | — | — |
| Devilline | CaCu₄(SO₄)₂(OH)₆·3H₂O | Monoclinic | 2.5 | — |
| Devitoite | [Ba₆(PO₄)₂(CO₃)][Fe²⁺₇(OH)₄Fe³⁺₂O₂(SiO₃)₈] | Triclinic | — | — |
| Dewindtite | H₂Pb₃(UO₂)₆O₄(PO₄)₄·12H₂O | — | 2.8 | — |
| Dewitite | — | Triclinic | — | — |
| Deynekoite | — | Trigonal | — | — |
| Diaboleite | CuPb₂Cl₂(OH)₄ | Tetragonal | 2.5 | — |
| Diadochite | Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O | Amorphous | — | — |
| Diamond | C | Cubic | 10.0 | 3.52 g/cm³ |
| Diaoyudaoite | NaAl₁₁O₁₇ | Hexagonal | — | 3.22 g/cm³ |
| Diaphorite | Ag₃Pb₂Sb₃S₈ | Monoclinic | — | 6.04 g/cm³ |
| Diaspore | AlO(OH) | Orthorhombic | — | 3.41 g/cm³ |
| Dickinsonite-(KMnNa) | {KNa}{Mn²⁺☐}{Ca}{Na₃}{Mn²⁺₁₃}{Al}(PO₄)₁₂(OH)₂ | — | — | — |
| Dickite | Al₂Si₂O₅(OH)₄ | Monoclinic | — | — |
| Dickthomssenite | MgV₂O₆·7H₂O | Monoclinic | 2.5 | — |
| Diegogattaite | Na₂CaCu₂Si₈O₂₀·H₂O | Monoclinic | — | — |
| Dienerite | Ni₃As | Cubic | — | — |
| Dietrichite | ZnAl₂(SO₄)₄·22H₂O | Monoclinic | 2.0 | — |
| Dietzeite | Ca₂(IO₃)₂(CrO₄)·H₂O | Monoclinic | — | — |
| Digenite | Cu₁.₈S | Trigonal | — | — |
| Dimorphite | As₄S₃ | Orthorhombic | — | — |
| Dingdaohengite-(Ce) | (Ce,La)₄Fe²⁺(Ti,Fe²⁺,Mg,Fe³⁺)₂Ti₂Si₄O₂₂ | Monoclinic | — | — |
| Dinilawiite | [Pb₄O₂Al(OH)₅]₂(S₂O₃)₂·H₂(S₂O₃)(H₂O)₅ | Monoclinic | — | — |
| Dinite | C₂₀H₃₆ | Orthorhombic | 1.0 | — |
| Diopside | CaMgSi₂O₆ | Monoclinic | — | 3.15 g/cm³ |
| Dioptase | CuSiO₃·H₂O | Trigonal | 5.0 | — |
| Dioskouriite | CaCu₄Cl₆(OH)₄·4H₂O | — | — | — |
| Direnzoite | NaK₆MgCa₂(Al₁₃Si₄₇)O₁₂₀·36H₂O | Orthorhombic | — | — |
| Dissakisite-(Ce) | {CaCe}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Dissakisite-(La) | {CaLa}{Al₂Mg}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Disulfodadsonite | Pb₁₁Sb₁₃S₃₀(S₂)₀.₅ | Triclinic | — | — |
| Dittmarite | (NH₄)Mg(PO₄)·H₂O | — | — | — |
| Diversilite-(Ce) | Na₂(Ba,K)₆Fe²⁺Ce₂Ti₃(Si₃O₉)₃(HSiO₄)₃(OH,H₂O)₉ | — | — | — |
| Dixenite | CuMn²⁺₁₄Fe²⁺(SiO₄)₂(As₅+O₄)(As³⁺O₃)₅(OH)₆ | — | — | — |
| Djerfisherite | K₆(Fe,Cu,Ni)₂₅S₂₆Cl | Cubic | — | — |
| Djurleite | Cu₃₁S₁₆ | Monoclinic | — | — |
| Dmisokolovite | K₃Cu₅AlO₂(AsO₄)₄ | Monoclinic | — | — |
| Dmisteinbergite | Ca(Al₂Si₂O₈) | Hexagonal | — | — |
| Dmitrievite | Sb₄Cl₂O₅ | Monoclinic | — | — |
| Dmitryivanovite | CaAl₂O₄ | Monoclinic | — | — |
| Dmitryvarlamovite | Ti₂(Fe³⁺Nb)O₈ | Orthorhombic | — | — |
| Dobrovolskyite | Na₄Ca(SO₄)₃ | Trigonal | — | — |
| Dobšináite | Ca₂Ca(AsO₄)₂·2H₂O | Monoclinic | — | — |
| Dokuchaevite | Cu₈O₂(VO₄)₃Cl₃ | Triclinic | — | — |
| Dolerophanite | Cu₂O(SO₄) | Monoclinic | 3.0 | — |
| Dollaseite-(Ce) | {CaCe}{MgAlMg}(Si₂O₇)(SiO₄)(OH)F | Monoclinic | — | — |
| Dolomite | CaMg(CO₃)₂ | Trigonal | — | 2.87 g/cm³ |
| Doloresite | V⁴⁺₃O₄(OH)₄ | Monoclinic | — | — |
| Domerockite | Cu₄(AsO₄)(AsO₃OH)(OH)₃·H₂O | Triclinic | — | — |
| Domeykite | Cu₃As | Cubic | — | — |
| Domitrovicite | Zn(C₂H₃O₃)₂·2H₂O | Monoclinic | — | — |
| Donbassite | Al₄.₃₃(AlSi₃O₁₀)(OH)₈ | — | — | — |
| Dondoellite | Ca₂Fe(PO₄)₂·2H₂O | Triclinic | — | — |
| Dongchuanite | Pb₄ZnZn₂(PO₄)₄(OH)₂ | Triclinic | — | — |
| Donharrisite | Ni₃HgS₃ | Monoclinic | — | — |
| Donnayite-(Y) | NaSr₃CaY(CO₃)₆·3H₂O | Triclinic | — | — |
| Donpeacorite | (Mn²⁺,Mg)MgSi₂O₆₂ | Orthorhombic | — | 3.36 g/cm³ |
| Donwilhelmsite | CaAl₄Si₂O₁₁ | Hexagonal | — | — |
| Dorallcharite | TlFe³⁺₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Dorfmanite | Na₂(PO₃OH)·2H₂O | — | — | — |
| Dorrite | Ca₄(Mg₃Fe³⁺₉)O₄(Si₃Al₈Fe³⁺O₃₆) | — | — | — |
| Douglasite | K₂Fe²⁺Cl₄·2H₂O | — | — | — |
| Dovyrenite | Ca₆Zr(Si₂O₇)₂(OH)₄ | Orthorhombic | — | — |
| Downeyite | SeO₂ | Tetragonal | — | 4.14 g/cm³ |
| Downsite | K₂(MoO₃)₃(SO₄)·4H₂O | Monoclinic | — | — |
| Doyleite | Al(OH)₃ | Monoclinic | — | — |
| Dozyite | Mg₇Al₂(Si₄Al₂)O₁₅(OH)₁₂ | — | 2.5 | 2.66 g/cm³ |
| Dravertite | CuMg(SO₄)₂ | Monoclinic | 3.5 | — |
| Dravite | NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃OH | Trigonal | 7.0 | — |
| Drechslerite | — | Triclinic | — | — |
| Dresserite | Ba₂Al₄(CO₃)₄(OH)₈·3H₂O | Orthorhombic | — | — |
| Dreyerite | Bi(VO₄) | Orthorhombic | — | 7.07 g/cm³ |
| Driekopite | PtBi | Hexagonal | — | 14.58 g/cm³ |
| Drobecite | Cd(SO₄)·4H₂O | Monoclinic | — | — |
| Droninoite | Ni₆Fe³⁺₂Cl₂(OH)₁₆·4H₂O | Trigonal | — | — |
| Drugmanite | Pb₂(Fe³⁺,Al)(PO₄)(PO₃OH)(OH)₂ | Monoclinic | — | — |
| Drysdallite | MoSe₂ | — | — | 6.51 g/cm³ |
| Dualite | Na₃₀(Ca,Na,Ce,Sr)₁₂(Na,Mn,Fe,Ti)₆Zr₃Ti₃Mn[Si₅₁O₁₄₄](OH,H₂O,Cl)₉ | Hexagonal | 5.0 | — |
| Dubińskaite | Ca₄Sc₂Al₄[Be₂Si₈O₃₀](OH)₂ | Triclinic | — | — |
| Dufrénite | — | Monoclinic | — | — |
| Dufrénoysite | Pb₂As₂S₅ | Monoclinic | 3.0 | — |
| Duftite | PbCuAsO₄(OH) | Orthorhombic | 4.5 | — |
| Dugganite | Pb₃Zn₃(TeO₆)(AsO₄)₂ | Trigonal | 3.0 | 6.58 g/cm³ |
| Dukeite | Bi³⁺₂₄Cr⁶⁺₈O₅₇(OH)₆·3H₂O | Trigonal | — | — |
| Dulanggouite | Bi₆Te₃ | Trigonal | — | — |
| Dumontite | Pb₂(UO₂)₃O₂(PO₄)₂·5H₂O | — | — | — |
| Dumortierite | AlAl₆BSi₃O₁₈ | Orthorhombic | — | — |
| Dundasite | PbAl₂(CO₃)₂(OH)₄·H₂O | Orthorhombic | 2.0 | — |
| Durangite | NaAlAsO₄F | Monoclinic | 5.5 | 3.72 g/cm³ |
| Duranusite | As₄S | Orthorhombic | — | — |
| Dusmatovite | K(Na,☐)₂(Zn,Li)₃(Mn²⁺,Y,Zr)₂[Si₁₂O₃₀] | — | 4.5 | — |
| Dussertite | BaFe³⁺₃(AsO₄)(AsO₃OH)(OH)₆ | — | — | — |
| Dutrowite | — | Trigonal | — | — |
| Duttonite | V⁴⁺O(OH)₂ | Monoclinic | — | — |
| Dwornikite | Ni(SO₄)·H₂O | Monoclinic | — | — |
| Dymkovite | Ni(UO₂)₂(As³⁺O₃)₂·7H₂O | Monoclinic | — | — |
| Dypingite | Mg₅(CO₃)₄(OH)₂·5H₂O | — | — | — |
| Dyrnaesite-(La) | Na₈Ce⁴⁺(La,REE)₂(PO₄)₆ | Orthorhombic | — | — |
| Dyscrasite | Ag₃₊ₓSb₁₋ₓ (x~0.2) | Orthorhombic | — | — |
| Dzhalindite | In(OH)₃ | Cubic | — | — |
| Dzharkenite | FeSe₂ | Cubic | 5.0 | 7.21 g/cm³ |
| Dzhuluite | Ca₃(SbSn)(Fe³⁺O₄)₃ | Cubic | — | — |
| Dzierżanowskite | CaCu₂S₂ | Trigonal | — | — |
| Désorite | Pb₂(Fe³⁺₆Zn)O₂(PO₄)₄(OH)₈ | Triclinic | — | — |