All minerals

Abswurmbachite

Cu²⁺(Mn³⁺)₆O₈(SiO₄)

Silicates Hardness 6,5 · Tetragonal

Acanthite

Ag₂S

Sulfides Hardness — · Monoclinic

Achalaite

Fe²⁺TiNb₂O₈

Oxides Hardness — · Monoclinic

Aenigmatite

Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]

Silicates Hardness — · Triclinic

Alabandite

MnS

Sulfides Hardness —

Allanite-(Y)

{CaY}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)

Silicates Hardness — · Monoclinic

Anandite

BaFe²⁺₃(Si₃Fe³⁺)O₁₀S(OH)

Silicates Hardness — · Monoclinic

Anatase

TiO₂

Oxides Hardness — · Tetragonal

Antimonselite

Sb₂Se₃

Sulfides Hardness — · Orthorhombic

Apuanite

Fe²⁺Fe³⁺₄Sb³⁺₄O₁₂S

Oxides Hardness — · Tetragonal

Aramayoite

Ag₃Sb₂(Bi,Sb)S₆

Sulfides Hardness — · Triclinic

Arfvedsonite

NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂

Silicates Hardness — · Monoclinic

Argutite

Oxides Hardness — · Tetragonal

Argyrodite

Ag₈GeS₆

Sulfides Hardness — · Orthorhombic

Augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O

Oxides Hardness — · Monoclinic

Aurorite

Mn²⁺Mn⁴⁺₃O₇·3H₂O

Oxides Hardness — · Trigonal

Avicennite

Tl₂O₃

Oxides Hardness — · Cubic

Azoproite

Mg₂[(Ti,Mg),Fe³⁺]O₂BO₃

Oxides Hardness 5,5 · Orthorhombic

Batisivite

BaTi₆(V,Cr)₈(Si₂O₇)O₂₂

Silicates Hardness — · Triclinic

Baumhauerite

Pb₁₂As₁₆S₃₆

Sulfides Hardness —

Beudantite

PbFe³⁺₃(AsO₄)(SO₄)(OH)₆

Sulfates Hardness — · Trigonal

Bixbyite-(Mn)

Mn³⁺₂O₃

Oxides Hardness — · Cubic

Blossite

Phosphates Hardness — · Orthorhombic

Brannerite

UTi₂O₆

Oxides Hardness — · Monoclinic

Braunite

Mn²⁺Mn³⁺₆(Si₈O₄)

Silicates Hardness — · Tetragonal

Cadmoindite

CdIn₂S₄

Sulfides Hardness — · Cubic

Cadmoselite

CdSe

Sulfides Hardness — · Hexagonal

Capgaronnite

AgHgClS

Halides Hardness — · Orthorhombic

Cassiterite

SnO₂

Oxides Hardness 6,5 · Tetragonal

Cervandonite-(Ce)

(Ce,Nd,La)(Fe³⁺,Fe²⁺,Ti,Al)₃O₂(Si₂O₇)(As³⁺O₃)(OH)

Silicates Hardness — · Monoclinic

Chaoite

C

Elements Hardness — · Hexagonal

Chromite

Fe²⁺Cr₂O₄

Oxides Hardness 5,5 · Cubic

Cleusonite

(Pb,Sr)(U₄+,U₆+)(Fe²⁺,Zn)₂(Ti,Fe²⁺,Fe³⁺)₁₈(O,OH)₃₈

Oxides Hardness — · Trigonal

Clino-ferro-ferri-holmquistite

☐Li₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂

Silicates Hardness — · Monoclinic

Coffinite

U(SiO₄) * nH₂O

Silicates Hardness — · Tetragonal

Coloradoite

HgTe

Sulfides Hardness — · Cubic

Coyoteite

NaFe₃S₅·2H₂O

Sulfides Hardness — · Triclinic

Cronstedtite

Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄

Silicates Hardness —

Cuprospinel

Cu²⁺Fe³⁺₂O₄

Oxides Hardness — · Cubic

Daubréelite

FeCr₂S₄

Sulfides Hardness — · Cubic

Delafossite

Cu¹⁺Fe³⁺O₂

Oxides Hardness — · Trigonal

Dessauite-(Y)

Sr(Y,U,Mn)(Ti,Fe,Cr,V)₁₈(O,OH)₃₈

Oxides Hardness — · Trigonal

Ekplexite

(Nb,Mo)S₂·(Mg₁₋ₓAlₓ)(OH)₂₊ₓ

Sulfides Hardness — · Trigonal

Enargite

Cu₃AsS₄

Sulfides Hardness — · Orthorhombic

Ericssonite

Silicates Hardness — · Monoclinic

Eskolaite

Cr₂O₃

Oxides Hardness — · Trigonal

Euxenite-(Y)

(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆

Oxides Hardness — · Orthorhombic

Ferberite

Fe²⁺WO₄

Oxides Hardness — · Monoclinic

Ferri-fluoro-leakeite

NaNa₂(Mg₂Fe³⁺₂Li)Si₈O₂₂F₂

Silicates Hardness — · Monoclinic

Ferri-winchite

☐(NaCa)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂

Silicates Hardness 5,5 · Monoclinic

Ferricoronadite

Pb(Mn₄+₆Fe³⁺₂)O₁₆

Oxides Hardness — · Tetragonal

Ferro-ferri-obertiite

NaNa₂(Fe²⁺₃Fe³⁺Ti⁴⁺)Si₈O₂₂O₂

Silicates Hardness — · Monoclinic

Filipstadite

Oxides Hardness — · Cubic

Fingerite

Phosphates Hardness — · Triclinic

Florensovite

Cu(Cr₁.₅Sb₀.₅)S₄

Sulfides Hardness 5 · Cubic

Fluor-uvite

CaMg₃(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃F

Silicates Hardness — · Trigonal

Fluoro-pargasite

NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂

Silicates Hardness — · Monoclinic

Franckeite

Fe(Pb,Sn)₆Sn₂Sb₂S₁₄

Sulfides Hardness —

Franklinite

ZnFe³⁺₂O₄

Oxides Hardness — · Cubic

Galaxite

Mn²⁺Al₂O₄

Oxides Hardness — · Cubic

Geikielite

MgTiO₃

Oxides Hardness — · Trigonal

Graphite

C

Elements Hardness 1,5 · Hexagonal

Groutite

Mn³⁺O(OH)

Oxides Hardness —

Guettardite

PbAsSbS₄

Sulfides Hardness — · Monoclinic

Hagendorfite

NaCaMn²⁺Fe²⁺₂(PO₄)₃

Phosphates Hardness — · Monoclinic

Harmunite

CaFe₂O₄

Oxides Hardness — · Orthorhombic

Hausmannite

Mn²⁺Mn³⁺₂O₄

Oxides Hardness — · Tetragonal

Hercynite

Fe²⁺Al₂O₄

Oxides Hardness — · Cubic

Heterogenite

Co³⁺O(OH)

Oxides Hardness — · Hexagonal

Hibonite

CaAl₁₂O₁₉

Oxides Hardness —

Hisingerite

Fe₂Si₂O₅(OH)₄·2H₂O

Silicates Hardness 3 · Monoclinic

Ilmenite

Fe²⁺Ti⁴⁺O₃

Oxides Hardness 5,5 · Trigonal

Ilsemannite

Mo₃O₈·nH₂O (?)

Oxides Hardness —

Indite

FeIn₂S₄

Sulfides Hardness — · Cubic

Jacobsite

Mn²⁺Fe³⁺₂O₄

Oxides Hardness — · Cubic

Jamesonite

Pb₄FeSb₆S₁₄

Sulfides Hardness — · Monoclinic

Janggunite

Mn₅-x(Mn,Fe)₁+xO₈(OH)₆

Oxides Hardness — · Orthorhombic

Joesmithite

PbCa₂(Mg₃Fe³⁺₂)(Be₂Si₆)O₂₂(OH)₂

Silicates Hardness 5,5 · Monoclinic

Kalininite

ZnCr₂S₄

Sulfides Hardness — · Cubic

Kamiokite

Fe₂Mo₃O₈

Oxides Hardness — · Hexagonal

Karelianite

V³⁺₂O₃

Oxides Hardness — · Trigonal

Kësterite

Cu₂ZnSnS₄

Sulfides Hardness —

Laurite

RuS₂

Sulfides Hardness — · Cubic

Livingstonite

HgSb₄S₈

Sulfides Hardness — · Monoclinic

Loparite

(Na₀.₅REE₀.₅)TiO₃

Oxides Hardness 5,75

Loveringite

(Ca,Ce,La)(Zr,Fe)(Mg,Fe)₂(Ti,Fe,Cr,Al)₁₈O₃₈

Oxides Hardness — · Hexagonal

Lucchesiite

CaFe²⁺₃ Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O

Oxides Hardness — · Trigonal

Ludwigite

Mg₂Fe³⁺O₂(BO₃)

Oxides Hardness — · Orthorhombic

Lyonsite

Phosphates Hardness — · Orthorhombic

Macedonite

PbTiO₃

Oxides Hardness —

Madocite

Pb₁₈(Sb,As)₁₅S₄₁

Sulfides Hardness — · Orthorhombic

Magnesio-lucchesiite

CaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O

Oxides Hardness — · Trigonal

Magnesioferrite

MgFe³⁺₂O₄

Oxides Hardness — · Cubic

Magnetite

Fe²⁺Fe³⁺₂O₄

Oxides Hardness 6 · Cubic

Magnetoplumbite

PbFe³⁺₁₂O₁₉

Oxides Hardness —

Meneghinite

Pb₁₃CuSb₇S₂₄

Sulfides Hardness — · Orthorhombic