Minerals

Dadsonite

Hardness: 2.5

Dagenaisite

Hardness: 0 - 2

Daliranite

Hardness: 0 - 2

Damaraite

Hardness: 3

Damiaoite

Hardness: 5

Danbaite

Hardness: 4

Danburite

Hardness: 7 - 7.5

Danielsite

Hardness: 1.5 - 2

Daomanite

Hardness: 3.5

Daqingshanite-(ce)

Hardness: 4.5

Darapskite

Hardness: 2.5

Dashkovaite

Hardness: 1

Davidbrownite-(nh4)

Hardness: 2

Davidite

Davidite-(ce)

Hardness: 6

Davidite-(la)

Hardness: 6

Davreuxite

Hardness: 2 - 3

Dawsonite

Hardness: 3

Deanesmithite

Hardness: 4.5 - 5

Debattistiite

Hardness: 2 - 2.5

Decagonite

Decrespignyite-(y)

Hardness: 4

Defernite

Hardness: 3

Delafossite

Hardness: 5.5

Delhayelite

Delhuyarite-(ce)

Deliensite

Hardness: 2

Delindeite

Dellagiustaite

Hardness: 6.5 - 7

Dellaite

Deloneite

Hardness: 5

Deloryite

Hardness: 4

Delrioite

Hardness: 2

Deltalumite

Delvauxite

Hardness: 2.5

Demagistrisite

Demartinite

Demesmaekerite

Hardness: 3 - 4

Demicheleite-(br)

Demicheleite-(cl)

Demicheleite-(i)

Denisovite

Hardness: 4 - 5

Denningite

Hardness: 4

Depmeierite

Hardness: 5

Derbylite

Hardness: 5

Derriksite

Dervillite

Hardness: 1 - 1.5

Desautelsite

Hardness: 2

Despujolsite

Hardness: 2.5

Dessauite-(y)

Hardness: 6.5 - 7

Destinezite

Hardness: 3 - 4

Deveroite-(ce)

Hardness: 2 - 2.5

Devilliersite

Devilline

Hardness: 2.5

Devitoite

Hardness: 4

Dewindtite

Diaboleite

Hardness: 2.5

Diadochite

Hardness: 3 - 4

Diamond

Hardness: 10

Diaoyudaoite

Hardness: 7.5 - 8

Diaphorite

Hardness: 2.5 - 3

Dickinsonite-(kmnna)

Hardness: 3.5 - 4

Dickite

Hardness: 2 - 2.5

Dickthomssenite

Hardness: 2.5

Diegogattaite

Hardness: 5 - 6

Dienerite

Dietrichite

Hardness: 2

Dietzeite

Hardness: 3.5

Digenite

Hardness: 2.5 - 3

Dimorphite

Hardness: 1.5

Dingdaohengite-(ce)

Dinite

Hardness: 1

Dioptase

Hardness: 5

Dioskouriite

Direnzoite

Hardness: 4.5

Dissakisite-(ce)

Hardness: 6.5 - 7

Dissakisite-(la)

Hardness: 6.5 - 7

Disulfodadsonite

Dittmarite

Hardness: 5

Diversilite-(ce)

Hardness: 5

Dixenite

Hardness: 3 - 4

Djerfisherite

Hardness: 3.5

Djurleite

Hardness: 2.5 - 3

Dmisokolovite

Hardness: 3

Dmisteinbergite

Hardness: 6

Dmitryivanovite

Dobrovolskyite

Dokuchaevite

Hardness: 2

Dolerophanite

Hardness: 3

Dollaseite

Dollaseite-(ce)

Hardness: 6.5 - 7

Doloresite

Domerockite

Hardness: 3

Domeykite

Hardness: 3 - 3.5

Domeykite-β

Donbassite

Hardness: 2 - 2.5

Donharrisite

Hardness: 2

Donnayite

Donnayite-(y)

Hardness: 3

Donowensite

Donpeacorite

Hardness: 5 - 6

Donwilhelmsite

Dorallcharite

Hardness: 3 - 4

Dorfmanite

Hardness: 1 - 1.5

Dorrite

Hardness: 5.5

Douglasite

Dovyrenite

Hardness: 3 - 4

Downeyite

Doyleite

Hardness: 2.5 - 3

Dozyite

Hardness: 2.5

Dragon Blood

Hardness: 6 - 7

Dravertite

Hardness: 3.5

Drechslerite

Dresserite

Hardness: 2.5 - 3

Dreyerite

Hardness: 2 - 3

Dritsite

Hardness: 2

Drobecite

Droninoite

Hardness: 1 - 1.5

Drugmanite

Hardness: 5 - 6

Drysdallite

Hardness: 2

Dualite

Hardness: 5

Dufrénite

Hardness: 3.5 - 4.5

Dufrénoysite

Hardness: 3

Duftite

Hardness: 4.5

Dugganite

Hardness: 3

Dukeite

Hardness: 3 - 4

Dumontite

Dundasite

Hardness: 2

Durangite

Hardness: 5.5

Duranusite

Hardness: 2 - 2.5

Dusmatovite

Hardness: 4.5

Dussertite

Hardness: 3.5

Dutkevichite-(ce)

Dutrowite

Duttonite

Hardness: 2.5

Dwornikite

Hardness: 2 - 3

Dymkovite

Dypingite

Dyrnaesite-(la)

Dyscrasite

Hardness: 3.5 - 4

Dzhalindite

Dzharkenite

Hardness: 5

Dzhuluite

Dzierżanowskite