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Cubic
minerals
Highest symmetry; three equal axes at 90°.
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512
minerals · Cubic minerals
Almandine
Fe²⁺₃Al₂(SiO₄)₃
Silicate
Cubic
Mohs 7–7.5
Copper
Cu
Native Element
Cubic
Mohs 2.5–3
Diamond
C
Native Element
Cubic
Mohs 10
Fluorite
CaF₂
Halide
Cubic
Mohs 4
Galena
PbS
Sulfide
Cubic
Mohs 2.5
Group
Garnet
X₃Y₂(SiO₄)₃
Silicate
Cubic
Mohs 6.5–7.5
Gold
Au
Native Element
Cubic
Mohs 2.5–3
Halite
NaCl
Halide
Cubic
Mohs 2.5
Rock
Lapis Lazuli
Rock — mainly lazurite
Silicate
Cubic
Mohs 5–5.5
Magnetite
Fe²⁺Fe³⁺₂O₄
Oxides & Hydroxide
Cubic
Mohs 5.5–6.5
Pyrite
FeS₂
Sulfide
Cubic
Mohs 6–6.5
Sodalite
Na₄(Si₃Al₃)O₁₂Cl
Silicate
Cubic
Mohs 5.5–6
A
Adrianite
Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆
Silicate
Cubic
A
Ahrensite
SiFe₂O₄
Silicate
Cubic
Alabandite
MnS
Sulfide
Cubic
Mohs 3.5–4
A
Alburnite
Ag₈GeTe₂S₄
Sulfide
Cubic
Mohs 4
Altaite
PbTe
Sulfide
Cubic
Mohs 3
Alum-(K)
KAl(SO₄)₂·12H₂O
Sulfate
Cubic
Mohs 2.25
A
Alum-(Na)
NaAl(SO₄)₂·12H₂O
Sulfate
Cubic
Aluminium
Al
Native Element
Cubic
Mohs 2–3
A
Ammoniomagnesiovoltaite
(NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O
Sulfate
Cubic
Mohs 2–3
A
Ammoniovoltaite
(NH₄)₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂(H₂O)₁₈
Sulfate
Cubic
Mohs 3–3.5
Andradite
Ca₃Fe³⁺₂(SiO₄)₃
Silicate
Cubic
Mohs 6.5–7
Argentopentlandite
Ag(Fe,Ni)₈S₈
Sulfide
Cubic
A
Argentotennantite-(Zn)
Ag₆(Cu₄Zn₂)As₄S₁₃
Sulfosalt
Cubic
Argentotetrahedrite-(Fe)
Ag₆(Cu₄Fe₂)Sb₄S₁₃
Sulfosalt
Cubic
Mohs 4
A
Argentotetrahedrite-(Hg)
Ag₆(Cu₄Hg₂)Sb₄S₁₃
Sulfosalt
Cubic
A
Argentotetrahedrite-(Zn)
Ag₆(Cu₄Zn₂)Sb₄S₁₃
Sulfosalt
Cubic
Mohs 3.5–4
Arsenolite
As₂O₃
Arsenate
Cubic
Mohs 1.5
A
Aspedamite
₁₂(Fe³⁺,Fe²⁺)₃Nb₄[Th(Nb,Fe³⁺)₁₂O₄₂][(H₂O),(OH)]₁₂
Oxides & Hydroxide
Cubic
Mohs 3–4
A
Asselbornite
Pb(UO₂)₄(BiO)₃(AsO₄)₂(OH)₇·4H₂O
Arsenate
Cubic
Atokite
Pd₃Sn
Native Element
Cubic
Auricupride
Cu₃Au
Native Element
Cubic
Mohs 3.5
Aurostibite
AuSb₂
Sulfide
Cubic
Mohs 3
Avicennite
Tl₂O₃
Oxides & Hydroxide
Cubic
Mohs 1.5–2.5
Awaruite
Ni₃Fe
Native Element
Cubic
Mohs 5.5–6
B
Bariopharmacoalumite
Ba₀.₅Al₄[(AsO₄)₃(OH)₄]·4H₂O
Arsenate
Cubic
Mohs 3.5
Bariopharmacosiderite
Ba₀.₅Fe³⁺₄(AsO₄)₃(OH)₄·5H₂O
Arsenate
Cubic
Berzelianite
Cu₂₋ₓSe (x ≈ 0.12)
Sulfide
Cubic
Mohs 2.7
Berzeliite
(NaCa₂)Mg₂(AsO₄)₃
Arsenate
Cubic
Mohs 4.5–5
Bicchulite
Ca₂Al₂SiO₆(OH)₂
Silicate
Cubic
Mohs 2.5
B
Bideauxite
AgPb₂F₂Cl₃
Halide
Cubic
Mohs 3
B
Bilibinskite
PbAu₃Cu₂Te₂
Sulfide
Cubic
B
Billingsleyite
Ag₇AsS₆
Sulfosalt
Cubic
Mohs 2.5
Bindheimite
Pb₂Sb⁵⁺₂O₇
Oxides & Hydroxide
Cubic
Mohs 4–4.5
B
Bismutostibiconite
(Bi,Fe³⁺, )₂Sb⁵⁺₂O₇
Oxides & Hydroxide
Cubic
Mohs 4–5
B
Bitikleite
Ca₃(SbSn)(AlO₄)₃
Oxides & Hydroxide
Cubic
Bixbyite-(Fe)
Fe³⁺₂O₃
Oxides & Hydroxide
Cubic
Mohs 6–6.5
B
Bixbyite-(Mn)
Mn³⁺₂O₃
Oxides & Hydroxide
Cubic
Mohs 3.75
Bogdanovite
(Au,Te,Pb)₃(Cu,Fe)
Sulfide
Cubic
B
Bojarite
Cu₃(N₃C₂H₂)₃(OH)Cl₂·6H₂O
Organic Mineral
Cubic
Mohs 2
Boleite
KAg₉Pb₂₆Cu₂₄Cl₆₂(OH)₄₈
Halide
Cubic
Mohs 3–3.5
B
Bolotinaite
(Na₇ )(Al₆Si₆O₂₄)F·4H₂O
Silicate
Cubic
B
Bornhardtite
Co²⁺Co³⁺₂Se₄
Sulfide
Cubic
Mohs 4
Bornite
Cu₅FeS₄
Sulfide
Cubic
Mohs 3–3.25
Borovskite
Pd₃SbTe₄
Sulfosalt
Cubic
Bromargyrite
AgBr
Halide
Cubic
Mohs 2.5
B
Browneite
MnS
Sulfide
Cubic
B
Brownleeite
MnSi
Native Element
Cubic
Brunogeierite
Fe²⁺₂Ge⁴⁺O₄
Oxides & Hydroxide
Cubic
Mohs 5
Bunsenite
NiO
Oxides & Hydroxide
Cubic
Mohs 5.5
Burtite
CaSn⁴⁺(OH)₆
Oxides & Hydroxide
Cubic
Mohs 3
Cadmoindite
CdIn₂S₄
Sulfide
Cubic
C
Caesiumpharmacosiderite
CsFe₄[(AsO₄)₃(OH)₄]·4H₂O
Arsenate
Cubic
Cafarsite
(Ca,Na, )₁₉Ti₈Fe³⁺₄Fe²⁺₄(AsO₃)₂₈F
Arsenate
Cubic
Mohs 5.5–6
C
Calciolangbeinite
K₂Ca₂(SO₄)₃
Sulfate
Cubic
Mohs 3–3.5
Calderite
Mn²⁺₃Fe³⁺₂(SiO₄)₃
Silicate
Cubic
Mohs 7
Calvertite
Cu₅Ge₀.₅S₄
Sulfide
Cubic
Mohs 4–5
C
Canfieldite
Ag₈SnS₆
Sulfide
Cubic
Mohs 2.5
C
Carletonmooreite
Ni₃Si
Native Element
Cubic
C
Carlsbergite
CrN
Native Element
Cubic
Mohs 7
Carobbiite
KF
Halide
Cubic
Carrollite
CuCo₂S₄
Sulfide
Cubic
Mohs 4.5–5.5
Cattierite
CoS₂
Sulfide
Cubic
Mohs 4
Cerianite-(Ce)
CeO₂
Oxides & Hydroxide
Cubic
Cerium
Ce
Native Element
Cubic
C
Cervelleite
Ag₄TeS
Sulfide
Cubic
C
Cesiokenopyrochlore
Nb₂(O,OH)₆Cs₁₋ₓ
Oxides & Hydroxide
Cubic
Mohs 5
Chaméanite
(Cu,Fe)₄As(Se,S)₄
Sulfosalt
Cubic
C
Changchengite
IrBiS
Sulfosalt
Cubic
Mohs 3.7
C
Chengdeite
Ir₃Fe
Native Element
Cubic
Mohs 5
Chibaite
SiO₂·n(CH₄,C₂H₆,C₃H₈,C₄H₁₀) (nmaₓ = 3/17)
Organic Mineral
Cubic
Mohs 5.5–7
C
Chihmingite
NiAl₂O₄
Oxides & Hydroxide
Cubic
Chlorargyrite
AgCl
Halide
Cubic
Mohs 2.5
C
Chlorkyuygenite
Ca₁₂Al₁₄O₃₂[(H₂O)₄Cl₂]
Halide
Cubic
Mohs 5–5.5
Chlormayenite
Ca₁₂Al₁₄O₃₂[ ₄Cl₂]
Halide
Cubic
Choloalite
(Pb,Ca)₃(Cu,Sb)₃Te₆O₁₈Cl
Halide
Cubic
Mohs 3
Chromferide
Fe₁.₅Cr₀.₂
Native Element
Cubic
Chromite
Fe²⁺Cr₂O₄
Oxides & Hydroxide
Cubic
Mohs 5.5
Chromium
Cr
Native Element
Cubic
C
Chukhrovite-(Ca)
Ca₃Ca₁.₅Al₂(SO₄)F₁₃·12H₂O
Sulfate
Cubic
Mohs 3.5
C
Chukhrovite-(Ce)
Ca₃CeAl₂(SO₄)F₁₃·12H₂O
Sulfate
Cubic
Mohs 3
C
Chukhrovite-(Nd)
Ca₃NdAl₂(SO₄)F₁₃·12H₂O
Sulfate
Cubic
Chukhrovite-(Y)
Ca₃YAl₂(SO₄)F₁₃·12H₂O
Sulfate
Cubic
Mohs 3
Clausthalite
PbSe
Sulfide
Cubic
Mohs 2.5–3
C
Cobaltpentlandite
Co₉S₈
Sulfide
Cubic
C
Cochromite
CoCr₂O₄
Oxides & Hydroxide
Cubic
Coloradoite
HgTe
Sulfide
Cubic
Mohs 2.5
Colusite
Cu₁₃VAs₃S₁₆
Sulfosalt
Cubic
Mohs 3–4
Corderoite
Hg₃S₂Cl₂
Sulfide
Cubic
Mohs 3
C
Coulsonite
Fe²⁺V³⁺₂O₄
Oxides & Hydroxide
Cubic
Mohs 4.5–5
C
Crerarite
(Pt,Pb)Bi₃(S,Se)₄₋ₓ (x = 0.4-0-8)
Sulfosalt
Cubic
Mohs 3.5
Cryolithionite
Na₃Al₂(LiF₄)₃
Halide
Cubic
Mohs 2.5–3
Cryptohalite
(NH₄)₂SiF₆
Halide
Cubic
Mohs 2.5
C
Cuboargyrite
AgSbS₂
Sulfosalt
Cubic
Mohs 3
C
Cubothioplumbite
[Pb₄(OH)₄]Pb(S₂O₃)₃
Sulfate
Cubic
Cuprite
Cu₂O
Oxides & Hydroxide
Cubic
Mohs 3.5–4
Cuproiridsite
Cu(Ir³⁺Ir⁴⁺)S₄
Sulfide
Cubic
C
Cuprokalininite
Cu(Cr³⁺Cr⁴⁺)S₄
Sulfide
Cubic
Mohs 4.5–5
Cuprorhodsite
(Cu¹⁺₀.₅Fe³⁺₀.₅)Rh³⁺₂S₄
Sulfide
Cubic
C
Cuprospinel
Cu²⁺Fe³⁺₂O₄
Oxides & Hydroxide
Cubic
D
D'ansite
Na₂₁Mg(SO₄)₁₀Cl₃
Sulfate
Cubic
Mohs 2.5–3
D
D'ansite-(Fe)
Na₂₁Fe(SO₄)₁₀Cl₃
Sulfate
Cubic
D
D'ansite-(Mn)
Na₂₁Mn(SO₄)₁₀Cl₃
Sulfate
Cubic
D
Damiaoite
PtIn₂
Native Element
Cubic
Mohs 5.3
Danalite
Be₃Fe²⁺₄(SiO₄)₃S
Silicate
Cubic
Mohs 5.5–6
Danbaite
CuZn₂
Native Element
Cubic
Mohs 4.2
Daubréelite
FeCr₂S₄
Sulfide
Cubic
Mohs 5
D
Davemaoite
CaSiO₃
Silicate
Cubic
Dellagiustaite
V²⁺Al₂O₄
Oxides & Hydroxide
Cubic
Mohs 6.5–7
Variety
Demantoid
Ca₃Fe₂(SiO₄)₃
Silicate
Cubic
Mohs 6.5–7
Digenite
Cu₁.₈S
Sulfide
Cubic
Mohs 2.5–3
Djerfisherite
K₆(Fe,Cu,Ni)₂₅S₂₆Cl
Sulfide
Cubic
Mohs 3.5
Domeykite
Cu₃As
Sulfide
Cubic
Mohs 3–3.5
Dzhalindite
In(OH)₃
Oxides & Hydroxide
Cubic
Dzharkenite
FeSe₂
Sulfide
Cubic
D
Dzhuluite
Ca₃(SbSn)(Fe³⁺O₄)₃
Oxides & Hydroxide
Cubic
Eddavidite
Cu₁₂Pb₂O₁₅Br₂
Halide
Cubic
E
Efremovite
(NH₄)₂Mg₂(SO₄)₃
Sulfate
Cubic
Mohs 2
Eglestonite
([Hg¹⁺]₂)₃OCl₃(OH)
Halide
Cubic
Mohs 2.5
E
Elbrusite
Ca₃(U⁶⁺₀.₅Zr₁.₅)(Fe³⁺O₄)₃
Oxides & Hydroxide
Cubic
Elpasolite
K₂NaAlF₆
Halide
Cubic
Mohs 2.5
E
Eltyubyuite
Ca₁₂Fe³⁺₁₀Si₄O₃₂Cl₆
Silicate
Cubic
E
Eringaite
Ca₃Sc₂(SiO₄)₃
Silicate
Cubic
Erlichmanite
OsS₂
Sulfide
Cubic
Ertixiite
Na₂Si₄O₉
Silicate
Cubic
Mohs 5.8–6.5
Eugenite
Ag₁₁Hg₂
Native Element
Cubic
Eulytine
Bi₄(SiO₄)₃
Silicate
Cubic
Mohs 4.5
F
Faujasite-Ca
(Ca,Na,Mg)₂(Si,Al)₁₂O₂₄·15H₂O
Silicate
Cubic
F
Faujasite-Mg
(Mg,Na,K,Ca)₂(Si,Al)₁₂O₂₄·15H₂O
Silicate
Cubic
Faujasite-Na
(Na,Ca,Mg)₂(Si,Al)₁₂O₂₄·15H₂O
Silicate
Cubic
Mohs 4.5–5
Ferchromide
Cr₁.₅Fe₀.₂
Native Element
Cubic
F
Ferroefremovite
(NH₄)₂Fe²⁺₂(SO₄)₃
Sulfate
Cubic
F
Ferroskutterudite
FeAs₃
Sulfide
Cubic
Ferrotychite
Na₆Fe²⁺₂(CO₃)₄(SO₄)
Sulfate
Cubic
Mohs 4
F
Ferrovorontsovite
(Fe₅Cu)TlAs₄S₁₂
Sulfosalt
Cubic
Mohs 3.5
Filipstadite
(Fe³⁺₀.₅Sb⁵⁺₀.₅)Mn²⁺₂O₄
Oxides & Hydroxide
Cubic
Fischesserite
Ag₃AuSe₂
Sulfide
Cubic
F
Fleetite
Cu₂RhIrSb₂
Sulfosalt
Cubic
Mohs 10.83
Fletcherite
CuNi₂S₄
Sulfide
Cubic
F
Florensovite
Cu(Cr₁.₅Sb₀.₅)S₄
Sulfosalt
Cubic
Mohs 5
F
Fluorcalciomicrolite
(Ca,Na, )₂Ta₂O₆F
Halide
Cubic
Mohs 4–5
Fluorcalciopyrochlore
(Ca,Na)₂(Nb,Ti)₂O₆F
Halide
Cubic
Mohs 5
Fluorcalcioroméite
(Ca,Na)₂Sb⁵⁺₂O₆F
Halide
Cubic
F
Fluorkyuygenite
Ca₁₂Al₁₄O₃₂[(H₂O)₄F₂]
Halide
Cubic
Mohs 5–5.5
F
Fluormayenite
Ca₁₂Al₁₄O₃₂[ ₄F₂]
Halide
Cubic
Mohs 5.5–6
Fluornatromicrolite
(Na₁.₅Bi₀.₅)Ta₂O₆F
Halide
Cubic
Mohs 5
Fluornatropyrochlore
(Na,Pb,Ca,REE,U)₂Nb₂O₆F
Halide
Cubic
Mohs 4–4.5
F
Fluorocronite
PbF₂
Halide
Cubic
Mohs 3–4
F
Frankdicksonite
BaF₂
Halide
Cubic
Mohs 2.5
Franklinite
ZnFe³⁺₂O₄
Oxides & Hydroxide
Cubic
Mohs 5.5–6.5
Fukuchilite
Cu₃FeS₈
Sulfide
Cubic
Mohs 4
Gahnite
ZnAl₂O₄
Oxides & Hydroxide
Cubic
Mohs 7.5–8
Galaxite
Mn²⁺Al₂O₄
Oxides & Hydroxide
Cubic
Mohs 7.5
Galkhaite
(Hg₅Cu)CsAs₄S₁₂
Sulfosalt
Cubic
Mohs 3
G
Gananite
BiF₃
Sulfide
Cubic
Mohs 3.5
G
Gaotaiite
Ir₃Te₈
Sulfide
Cubic
Mohs 3
Geerite
Cu₈S₅
Sulfide
Cubic
Mohs 3.5
Geffroyite
(Cu,Fe,Ag)₉Se₈
Sulfide
Cubic
Genthelvite
Be₃Zn₄(SiO₄)₃S
Silicate
Cubic
Mohs 6.5
Germanite
Cu₁₃Fe₂Ge₂S₁₆
Sulfide
Cubic
Mohs 4
G
Germanocolusite
Cu₁₃VGe₃S₁₆
Sulfide
Cubic
G
Gersdorffite-P213
NiAsS
Sulfosalt
Cubic
G
Gersdorffite-Pa3
NiAsS
Sulfosalt
Cubic
G
Geversite
PtSb₂
Sulfide
Cubic
Mohs 4.5–5
Gianellaite
(Hg₂N)₂(SO₄)(H₂O)ₓ
Sulfate
Cubic
Mohs 3
Giraudite-(Zn)
Cu₆(Cu₄Zn₂)As₄Se₁₃
Sulfosalt
Cubic
Gmalimite
K₆ Fe²⁺₂₄S₂₇
Sulfide
Cubic
Goldfieldite
(Cu₄ ₂)Cu₆Te₄S₁₃
Sulfide
Cubic
Mohs 3–3.5
Goldmanite
Ca₃V³⁺₂(SiO₄)₃
Silicate
Cubic
Mohs 7
G
Goldschmidtite
KNbO₃
Oxides & Hydroxide
Cubic
Greigite
Fe²⁺Fe³⁺₂S₄
Sulfide
Cubic
Mohs 4–4.5
Griceite
LiF
Halide
Cubic
Mohs 4.5
Grimmite
NiCo₂S₄
Sulfide
Cubic
Griphite
Ca(Mn²⁺,Na,Li)₆Fe²⁺Al₂(PO₄)₆(F,OH)₂
Phosphate
Cubic
Mohs 5.5
Grossular
Ca₃Al₂(SiO₄)₃
Silicate
Cubic
Mohs 6.5–7
Guite
Co²⁺Co³⁺₂O₄
Oxides & Hydroxide
Cubic
Gupeiite
Fe₃Si
Native Element
Cubic
H
Hakite-(Hg)
Cu₆(Cu₄Hg₂)Sb₄Se₁₃
Sulfosalt
Cubic
H
Hapkeite
Fe₂Si
Native Element
Cubic
Hauerite
MnS₂
Sulfide
Cubic
Mohs 4
Hawleyite
CdS
Sulfide
Cubic
Haxonite
(Fe,Ni)₂₃C₆
Organic Mineral
Cubic
Haüyne
Na₃Ca(Si₃Al₃)O₁₂(SO₄)
Silicate
Cubic
Mohs 5.5–6
H
Heamanite-(Ce)
(K₀.₅Ce₀.₅)TiO₃
Oxides & Hydroxide
Cubic
Mohs 5.5
Helvine
Be₃Mn²⁺₄(SiO₄)₃S
Silicate
Cubic
Mohs 6–6.5
Hemusite
Cu¹⁺₄Cu²⁺₂SnMoS₈
Sulfide
Cubic
Mohs 4
H
Henryite
(Cu,Ag)₃₊ₓTe₂ (x~0.4)
Sulfide
Cubic
Hercynite
Fe²⁺Al₂O₄
Oxides & Hydroxide
Cubic
Mohs 7.5–8
Variety
Hessonite
Ca₃Al₂(SiO₄)₃
Silicate
Cubic
Mohs 6.5–7
Hieratite
K₂SiF₆
Halide
Cubic
Mohs 2.5
Hollingworthite
RhAsS
Sulfosalt
Cubic
Mohs 6
Hsianghualite
Li₂Ca₃Be₃(SiO₄)₃F₂
Silicate
Cubic
Mohs 6.5
H
Hunchunite
Au₂Pb
Native Element
Cubic
H
Hutcheonite
Ca₃Ti₂(SiAl₂)O₁₂
Silicate
Cubic
Hydrokenoelsmoreite
₂W₂O₆(H₂O)
Tungstate
Cubic
Mohs 3
Hydrokenomicrolite
( ,H₂O)₂Ta₂(O,OH)₆(H₂O)
Oxides & Hydroxide
Cubic
Mohs 4.5–5
H
Hydrokenopyrochlore
( ,Sb³⁺,Na)₂Nb₂O₆·H₂O
Oxides & Hydroxide
Cubic
H
Hydrokenoralstonite
₂Al₂F₆(H₂O)
Halide
Cubic
H
Hydroniumpharmacoalumite
(H₃O)Al₄(AsO₄)₃(OH)₄·4.5H₂O
Arsenate
Cubic
Mohs 2.5
H
Hydroniumpharmacosiderite
(H₃O)Fe³⁺₄(AsO₄)₃(OH)₄·4H₂O
Arsenate
Cubic
Mohs 2–3
H
Hydroplumboelsmoreite
(Pb )(W₁.₃₃Fe³⁺₀.₆₇)O₆(H₂O)
Oxides & Hydroxide
Cubic
Hydropyrochlore
(H₂O, )₂Nb₂(O,OH)₆(H₂O)
Oxides & Hydroxide
Cubic
Mohs 4–4.5
Hydroxycalciomicrolite
Ca₁.₅Ta₂O₆(OH)
Oxides & Hydroxide
Cubic
Mohs 5–6
H
Hydroxycalciopyrochlore
(Ca,Na,U, )₂(Nb,Ti)₂O₆(OH)
Oxides & Hydroxide
Cubic
Mohs 5–6
H
Hydroxycalcioroméite
(Ca,Sb³⁺)₂(Sb⁵⁺,Ti)₂O₆(OH)
Oxides & Hydroxide
Cubic
H
Hydroxyferroroméite
(Fe²⁺₁.₅ ₀.₅)Sb⁵⁺₂O₆(OH)
Oxides & Hydroxide
Cubic
H
Hydroxykenoelsmoreite
( ,Pb)₂(W,Fe³⁺,Al)₂(O,OH)₆(OH)
Oxides & Hydroxide
Cubic
Hydroxykenomicrolite
( ,Na,Sb³⁺)₂Ta₂O₆(OH)
Oxides & Hydroxide
Cubic
Mohs 5
H
Hydroxykenopyrochlore
( ,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F)
Halide
Cubic
Mohs 4.5
Hydroxymanganopyrochlore
(Mn,Th,Na,Ca,REE)₂(Nb,Ti)₂O₆(OH)
Oxides & Hydroxide
Cubic
H
Hydroxynatropyrochlore
(Na,Ca,Ce)₂Nb₂O₆(OH)
Oxides & Hydroxide
Cubic
Mohs 5
H
Hydroxyplumbopyrochlore
(Pb₁.₅ ₀.₅)Nb₂O₆(OH)
Oxides & Hydroxide
Cubic
Mohs 5.5
H
Håleniusite-(Ce)
CeOF
Halide
Cubic
Håleniusite-(La)
LaOF
Halide
Cubic
I
Ice-VII
H₂O
Oxides & Hydroxide
Cubic
Indite
FeIn₂S₄
Sulfide
Cubic
Insizwaite
PtBi₂
Sulfide
Cubic
Irarsite
IrAsS
Sulfosalt
Cubic
Iridium
Ir
Native Element
Cubic
Mohs 6–7
I
Irinarassite
Ca₃Sn₂(SiAl₂)O₁₂
Silicate
Cubic
Iron
Fe
Native Element
Cubic
Mohs 4
I
Ishiharaite
(Cu,Ga,Fe,In,Zn)S
Sulfide
Cubic
Isocubanite
CuFe₂S₃
Sulfide
Cubic
Isoferroplatinum
Pt₃Fe
Native Element
Cubic
I
Isomertieite
Pd₁₁Sb₂As₂
Sulfide
Cubic
I
Isovite
(Cr,Fe)₂₃C₆
Organic Mineral
Cubic
I
Ivanyukite-Cu
Cu[Ti₄O₂(OH)₂(SiO₄)₃]·7H₂O
Silicate
Cubic
Mohs 4
I
Ivanyukite-K
K₂[Ti₄O₂(OH)₂(SiO₄)₃]·9H₂O
Silicate
Cubic
Mohs 4
Jacobsite
Mn²⁺Fe³⁺₂O₄
Oxides & Hydroxide
Cubic
Mohs 5.5–6.5
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