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Mohs 4 minerals

The reference mineral for 4 is fluorite.

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616 minerals · Mohs 4 minerals
Azurite specimen
Azurite Cu₃(CO₃)₂(OH)₂
CarbonateMonoclinicMohs 3.5–4
Fluorite specimen
Fluorite CaF₂
HalideCubicMohs 4
Malachite specimen
Malachite Cu₂(CO₃)(OH)₂
CarbonateMonoclinicMohs 3.5–4
Rhodochrosite specimen
Rhodochrosite Mn(CO₃)
CarbonateHexagonalMohs 3.5–4
Aerugite specimen
Aerugite Ni₈.₅(AsO₄)₂As⁵⁺O₈
ArsenateHexagonalMohs 4
Afwillite specimen
Afwillite Ca₃[SiO₄][SiO₂(OH)₂]·2H₂O
SilicateMonoclinicMohs 3–4
Agricolaite specimen
Agricolaite K₄(UO₂)(CO₃)₃
CarbonateMonoclinicMohs 4
A
Aklimaite Ca₄[Si₂O₅(OH)₂](OH)₄·5H₂O
SilicateMonoclinicMohs 3–4
Alabandite specimen
Alabandite MnS
SulfideCubicMohs 3.5–4
A
Alburnite Ag₈GeTe₂S₄
SulfideCubicMohs 4
A
Alcaparrosaite K₃Ti⁴⁺Fe³⁺(SO₄)₄O(H₂O)₂
SulfateMonoclinicMohs 4
A
Aleksandrovite KCa₇Sn₂Li₃Si₁₂O₃₆F₂
SilicateMonoclinicMohs 4–4.5
A
Alflarsenite NaCa₂Be₃Si₄O₁₃(OH)·2H₂O
SilicateMonoclinicMohs 4
Algodonite specimen
Algodonite Cu₁₋ₓAsₓ (x ≈ 0.15)
SulfideHexagonalMohs 4
A
Allochalcoselite Cu¹⁺Cu²⁺₅PbO₂(SeO₃)₂Cl₅
HalideMonoclinicMohs 3–4
Alstonite specimen
Alstonite BaCa(CO₃)₂
CarbonateOrthorhombicMohs 4–4.5
Althausite specimen
Althausite Mg₄(PO₄)₂(OH,O)(F,   )
PhosphateOrthorhombicMohs 3.5–4
Alunite specimen
Alunite KAl₃(SO₄)₂(OH)₆
SulfateHexagonalMohs 3.5–4
Amakinite specimen
Amakinite Fe(OH)₂
Oxides & HydroxideHexagonalMohs 3.5–4
A
Ammoniotinsleyite (NH₄)Al₂(PO₄)₂(OH)·2H₂O
PhosphateMonoclinicMohs 4
Amstallite specimen
Amstallite CaAl[(Al,Si)₄O₈(OH)₂](OH)₂·(H₂O,Cl)
SilicateMonoclinicMohs 3–5
A
Anandite BaFe²⁺₃(Si₃Fe³⁺)O₁₀S(OH)
SilicateMonoclinicMohs 3–4
Ancylite-(Ce) specimen
Ancylite-(Ce) CeSr(CO₃)₂(OH)·H₂O
CarbonateOrthorhombicMohs 4–4.5
A
Ancylite-(La) LaSr(CO₃)₂(OH)·H₂O
CarbonateOrthorhombicMohs 4–4.5
Ankerite specimen
Ankerite Ca(Fe²⁺,Mg)(CO₃)₂
CarbonateHexagonalMohs 3.5–4
Aqualite specimen
Aqualite (H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl
SilicateHexagonalMohs 4–5
Aragonite specimen
Aragonite Ca(CO₃)
CarbonateOrthorhombicMohs 3.5–4
A
Arakiite ZnMn²⁺₁₂Fe³⁺₂(As³⁺O₃)(As⁵⁺O₄)₂(OH)₂₃
Oxides & HydroxideMonoclinicMohs 3–4
A
Argandite Mn₇(VO₄)₂(OH)₈
VanadateMonoclinicMohs 3.5–4
A
Argentoliveingite AgₓPb₄₀₋₂ₓAs₄₈₊ₓS₁₁₂ (3 < x < 4)
SulfosaltTriclinicMohs 4
Argentopyrite specimen
Argentopyrite AgFe₂S₃
SulfideMonoclinicMohs 3.5–4
Argentotetrahedrite-(Fe) specimen
Argentotetrahedrite-(Fe) Ag₆(Cu₄Fe₂)Sb₄S₁₃
SulfosaltCubicMohs 4
A
Argentotetrahedrite-(Zn) Ag₆(Cu₄Zn₂)Sb₄S₁₃
SulfosaltCubicMohs 3.5–4
A
Ariegilatite BaCa₁₂(SiO₄)₄(PO₄)₂F₂O
SilicateHexagonalMohs 4–4.5
Armangite specimen
Armangite Mn²⁺₂₆[As³⁺₆(OH)₄O₁₄][As³⁺₆O₁₈]₂(CO₃)
CarbonateHexagonalMohs 4
A
Arrojadite-(BaNa) BaNa₃(NaCa)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂
PhosphateMonoclinicMohs 4–5
A
Arrojadite-(PbFe) PbFe²⁺(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂
PhosphateMonoclinicMohs 3.5–4
A
Arrojadite-(SrFe) SrFe²⁺(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂
PhosphateMonoclinicMohs 3.5–4
A
Arsenbrackebuschite Pb₂(Fe³⁺,Zn)(AsO₄)₂(OH,H₂O)
ArsenateMonoclinicMohs 4–5
Arsendescloizite specimen
Arsendescloizite PbZn(AsO₄)(OH)
ArsenateOrthorhombicMohs 4–5
Arseniopleite specimen
Arseniopleite NaCaMnMn₂(AsO₄)₃
ArsenateMonoclinicMohs 3–4
Arsenogorceixite specimen
Arsenogorceixite BaAl₃(AsO₄)(AsO₃OH)(OH)₆
ArsenateHexagonalMohs 4
Arsenogoyazite specimen
Arsenogoyazite SrAl₃(AsO₄)(AsO₃OH)(OH)₆
ArsenateHexagonalMohs 4
A
Aspedamite ₁₂(Fe³⁺,Fe²⁺)₃Nb₄[Th(Nb,Fe³⁺)₁₂O₄₂][(H₂O),(OH)]₁₂
Oxides & HydroxideCubicMohs 3–4
Austinite specimen
Austinite CaZn(AsO₄)(OH)
ArsenateOrthorhombicMohs 4–4.5
A
Averievite Cu₅O₂(VO₄)₂·CuCl₂
VanadateHexagonalMohs 4
Bannisterite specimen
Bannisterite (Ca,K,Na)(Mn²⁺,Fe²⁺)₁₀(Si,Al)₁₆O₃₈(OH)₈·nH₂O
SilicateMonoclinicMohs 4
Baratovite specimen
Baratovite KLi₃Ca₇Ti₂(SiO₃)₁₂F₂
SilicateMonoclinicMohs 3.5–4
B
Barquillite Cu₂(Cd,Fe)GeS₄
SulfideTetragonalMohs 4–4.5
B
Bartelkeite PbFe²⁺Ge(Ge₂O₇)(OH)₂·H₂O
Oxides & HydroxideMonoclinicMohs 4
Barytocalcite specimen
Barytocalcite BaCa(CO₃)₂
CarbonateMonoclinicMohs 3.5–4
B
Bassoite SrV⁴⁺₃O₇·4H₂O
Oxides & HydroxideMonoclinicMohs 4–4.5
B
Bavsiite Ba₂V₂O₂[Si₄O₁₂]
SilicateTetragonalMohs 4
Behoite specimen
Behoite Be(OH)₂
Oxides & HydroxideOrthorhombicMohs 4
Bellingerite specimen
Bellingerite Cu₃(IO₃)₆·2H₂O
IodateTriclinicMohs 4
Benstonite specimen
Benstonite Ba₆Ca₆Mg(CO₃)₁₃
CarbonateHexagonalMohs 3–4
Beraunite specimen
Beraunite Fe³⁺₆(PO₄)₄O(OH)₄·6H₂O
PhosphateMonoclinicMohs 3–4
B
Bernalite Fe(OH)₃
Oxides & HydroxideOrthorhombicMohs 4
Beudantite specimen
Beudantite PbFe³⁺₃(AsO₄)(SO₄)(OH)₆
ArsenateHexagonalMohs 4
Bindheimite specimen
Bindheimite Pb₂Sb⁵⁺₂O₇
Oxides & HydroxideCubicMohs 4–4.5
B
Birchite Cd₂Cu₂(PO₄)₂(SO₄)·5H₂O
PhosphateOrthorhombicMohs 3.5–4
B
Bismutostibiconite (Bi,Fe³⁺,   )₂Sb⁵⁺₂O₇
Oxides & HydroxideCubicMohs 4–5
B
Bityite CaLiAl₂(Si₂BeAl)O₁₀(OH)₂
SilicateMonoclinicMohs 4–4.5
Bjarebyite specimen
Bjarebyite BaMn²⁺₂Al₂(PO₄)₃(OH)₃
PhosphateMonoclinicMohs 4
Bobfergusonite specimen
Bobfergusonite Na₂Mn²⁺₅Fe³⁺Al(PO₄)₆
PhosphateMonoclinicMohs 4
B
Bobshannonite Na₂KBa(Mn,Na)₈(Nb,Ti)₄(Si₂O₇)₄O₄(OH)₄(O,F)₂
SilicateTriclinicMohs 4
Boltwoodite specimen
Boltwoodite (K,Na)(UO₂)(SiO₃OH)·1.5H₂O
SilicateMonoclinicMohs 3.5–4
B
Bonshtedtite Na₃Fe²⁺(PO₄)(CO₃)
PhosphateMonoclinicMohs 4
Borcarite specimen
Borcarite Ca₄MgB₄O₆(CO₃)₂(OH)₆
BorateMonoclinicMohs 4–4.5
Bornemanite specimen
Bornemanite Na₆(Na   )Ba₂Ti₂Nb₂(Si₂O₇)₄(PO₄)₂O₄(OH)₂F₂
SilicateMonoclinicMohs 3.5–4
B
Bornhardtite Co²⁺Co³⁺₂Se₄
SulfideCubicMohs 4
Brattforsite specimen
Brattforsite Mn₁₉As₁₂O₃₆Cl₂
HalideMohs 3–4
Brochantite specimen
Brochantite Cu₄(SO₄)(OH)₆
SulfateMonoclinicMohs 3.5–4
Burbankite specimen
Burbankite (Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅
CarbonateHexagonalMohs 3.5–4
B
Bussenite Ba₄(Na,   )₂(Fe²⁺,Na)₂Ti₂(Si₂O₇)₂(CO₃)₂O₂(OH)₂(H₂O)₂F₂
SilicateTriclinicMohs 4
Bussyite-(Ce) specimen
Bussyite-(Ce) (Ce,REE)₃(Na,H₂O)₆MnSi₉Be₅(O,OH)₃₀F₄
SilicateMonoclinicMohs 4
B
Bussyite-(Y) (Y,REE,Ca)₃(Na,Ca)₆MnSi₉Be₅(O,F,OH)₃₄
SilicateMonoclinicMohs 4
Bøggildite specimen
Bøggildite Na₂Sr₂Al₂(PO₄)F₉
PhosphateMonoclinicMohs 4–5
Cadmoselite specimen
Cadmoselite CdSe
SulfideHexagonalMohs 4
Cafetite specimen
Cafetite CaTi₂O₅·H₂O
Oxides & HydroxideMonoclinicMohs 4–5
Calcioancylite-(Ce) specimen
Calcioancylite-(Ce) (Ce,Ca,Sr)(CO₃)(OH,H₂O)
CarbonateOrthorhombicMohs 4–4.5
C
Calcioancylite-(Nd) Nd₂.₈Ca₁.₂(CO₃)₄(OH)₃·H₂O
CarbonateMonoclinicMohs 4–4.5
C
Calcioburbankite Na₃(Ca,Ce,Sr,La)₃(CO₃)₅
CarbonateHexagonalMohs 3–4
Calciohilairite specimen
Calciohilairite CaZrSi₃O₉·3H₂O
SilicateHexagonalMohs 4
Calciouranoite specimen
Calciouranoite (Ca,Ba,Pb,K,Na)U₂O₇·5H₂O
Oxides & HydroxideMohs 4
Calcjarlite specimen
Calcjarlite Na₂(Ca,   )₁₄(Mg,   )₂Al₁₂F₆₄(OH)₄
HalideMohs 4
C
Calderónite Pb₂Fe³⁺(VO₄)₂(OH)
VanadateMonoclinicMohs 3–4
Calvertite specimen
Calvertite Cu₅Ge₀.₅S₄
SulfideCubicMohs 4–5
Cameronite specimen
Cameronite Cu₅₋ₓ(Cu,Ag)₃₊ₓTe₁₀ (x = 0.43)
SulfideMonoclinicMohs 3.5–4
Cannonite specimen
Cannonite Bi₂O(SO₄)(OH)₂
SulfateMonoclinicMohs 4
Carletonite specimen
Carletonite KNa₄Ca₄Si₈O₁₈(CO₃)₄(F,OH)·H₂O
SilicateTetragonalMohs 4–4.5
Caryinite specimen
Caryinite NaCaCaMn₂(AsO₄)₃
ArsenateMonoclinicMohs 4
Cattierite specimen
Cattierite CoS₂
SulfideCubicMohs 4
Cavansite specimen
Cavansite Ca(V⁴⁺O)(Si₄O₁₀)·4H₂O
SilicateOrthorhombicMohs 3.5–4
Cervantite specimen
Cervantite Sb³⁺Sb⁵⁺O₄
Oxides & HydroxideOrthorhombicMohs 4–5
Chabazite-Ca specimen
Chabazite-Ca Ca₂[Al₄Si₈O₂₄]·13H₂O
SilicateTrigonalMohs 4–5
C
Chabazite-K (K₂NaCa₀.₅)[Al₄Si₈O₂₄]·11H₂O
SilicateTrigonalMohs 4–5
C
Chabazite-Mg (Mg₀.₇K₀.₅Ca₀.₅Na₀.₁)[Al₃Si₉O₂₄]·10H₂O
SilicateHexagonalMohs 4
C
Chabazite-Na (Na₃K)[Al₄Si₈O₂₄]·11H₂O
SilicateTrigonalMohs 4–5
Chabazite-Sr specimen
Chabazite-Sr (Sr,Ca)₂[Al₄Si₈O₂₄]·11H₂O
SilicateHexagonalMohs 4–4.5
Chalcopyrite specimen
Chalcopyrite CuFeS₂
SulfideTetragonalMohs 3.5–4
Chalcostibite specimen
Chalcostibite CuSbS₂
SulfosaltOrthorhombicMohs 3–4
C
Charleshatchettite CaNb₄O₁₀(OH)₂·8H₂O
Oxides & HydroxideMonoclinicMohs 4
Chekhovichite specimen
Chekhovichite Bi³⁺₂Te⁴⁺₄O₁₁
Oxides & HydroxideMonoclinicMohs 4
Chenevixite specimen
Chenevixite CuFe³⁺(AsO₄)(OH)₂
ArsenateMonoclinicMohs 3.5–4.5
C
Chiolite Na₅Al₃F₁₄
HalideTetragonalMohs 3.5–4
Chlorbartonite specimen
Chlorbartonite K₆Fe₂₄S₂₆Cl
SulfideTetragonalMohs 4
C
Chlorellestadite Ca₅(SiO₄)₁.₅(SO₄)₁.₅Cl
SilicateHexagonalMohs 4–4.5
Chrysocolla specimen
Chrysocolla (Cu₂₋ₓAlₓ)H₂₋ₓSi₂O₅(OH)₄·nH₂O
SilicateAmorphousMohs 2–4
C
Chukanovite Fe₂(CO₃)(OH)₂
CarbonateMonoclinicMohs 3.5–4
C
Clarkeite Na(UO₂)O(OH)·nH₂O
Oxides & HydroxideHexagonalMohs 4–4.5
Cliffordite specimen
Cliffordite UTe⁴⁺₃O₉
Oxides & HydroxideMohs 4
Clinophosinaite specimen
Clinophosinaite Na₃Ca(SiO₃)(PO₄)
SilicateMonoclinicMohs 4
Clinoptilolite-Ca specimen
Clinoptilolite-Ca Ca₃(Si₃₀Al₆)O₇₂·20H₂O
SilicateMonoclinicMohs 3.5–4
Clinoptilolite-Na specimen
Clinoptilolite-Na Na₆(Si₃₀Al₆)O₇₂·20H₂O
SilicateMonoclinicMohs 3.5–4
Cobaltarthurite specimen
Cobaltarthurite CoFe³⁺₂(AsO₄)₂(OH)₂·4H₂O
ArsenateMonoclinicMohs 3.5–4
Colemanite specimen
Colemanite CaB₃O₄(OH)₃·H₂O
Oxides & HydroxideMonoclinicMohs 4–4.5
Colinowensite specimen
Colinowensite BaCuSi₂O₆
SilicateTetragonalMohs 4
Collinsite specimen
Collinsite Ca₂Mg(PO₄)₂·2H₂O
PhosphateTriclinicMohs 3.5–5
Colquiriite specimen
Colquiriite CaLiAlF₆
HalideHexagonalMohs 4
Colusite specimen
Colusite Cu₁₃VAs₃S₁₆
SulfosaltCubicMohs 3–4
Cooperite specimen
Cooperite PtS
SulfideTetragonalMohs 4–5
MineraloidCoral specimen
Coral Aragonite skeleton
CarbonateOrthorhombicMohs 3–4
C
Cordylite-(La) NaCaBa₂La₃Sr(CO₃)₈F₂
CarbonateHexagonalMohs 4
Corkite specimen
Corkite PbFe³⁺₃(SO₄)(PO₄)(OH)₆
PhosphateHexagonalMohs 4
Cornubite specimen
Cornubite Cu₅(AsO₄)₂(OH)₄
ArsenateTriclinicMohs 4
Crednerite specimen
Crednerite CuMnO₂
Oxides & HydroxideMonoclinicMohs 4
Creedite specimen
Creedite Ca₃Al₂(SO₄)(OH)₂F₈·2H₂O
SulfateMonoclinicMohs 4
Cuprite specimen
Cuprite Cu₂O
Oxides & HydroxideCubicMohs 3.5–4
C
Cupromakovickyite Cu₄AgPb₂Bi₉S₁₈
SulfosaltMonoclinicMohs 4
Cuprosklodowskite specimen
Cuprosklodowskite Cu(UO₂)₂(SiO₃OH)₂·6H₂O
SilicateTriclinicMohs 4
Curite specimen
Curite Pb₃₊ₓ[(UO₂)₄O₄₊ₓ(OH)₃₋ₓ]₂·2H₂O
Oxides & HydroxideOrthorhombicMohs 4–5
Cyrilovite specimen
Cyrilovite NaFe³⁺₃(PO₄)₂(OH)₄·2H₂O
PhosphateTetragonalMohs 4
C
Czochralskiite Na₄Ca₃Mg(PO₄)₄
PhosphateOrthorhombicMohs 4–5
D
Dachiardite-Ca Ca₂(Si₂₀Al₄)O₄₈·13H₂O
SilicateMonoclinicMohs 4–4.5
Dachiardite-K specimen
Dachiardite-K K₄(Si₂₀Al₄)O₄₈·13H₂O
SilicateMonoclinicMohs 4
D
Davidlloydite Zn₃(AsO₄)₂·4H₂O
ArsenateTriclinicMohs 3–4
Decrespignyite-(Y) specimen
Decrespignyite-(Y) Y₄Cu(CO₃)₄Cl(OH)₅·2H₂O
CarbonateMonoclinicMohs 4
D
Deloryite Cu₄(UO₂)Mo₂O₈(OH)₆
MolybdateMonoclinicMohs 4
Demesmaekerite specimen
Demesmaekerite Pb₂Cu₅(UO₂)₂(Se⁴⁺O₃)₆(OH)₆·2H₂O
Oxides & HydroxideTriclinicMohs 3–4
Denisovite specimen
Denisovite KCa₂Si₃O₈F
SilicateMonoclinicMohs 4–5
Denningite specimen
Denningite CaMn²⁺Te⁴⁺₄O₁₀
Oxides & HydroxideTetragonalMohs 4
Destinezite specimen
Destinezite Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O
PhosphateTriclinicMohs 3–4
D
Devitoite Ba₆Fe²⁺₇Fe³⁺₂(Si₄O₁₂)₂(PO₄)₂(CO₃)O₂(OH)₄
SilicateTriclinicMohs 4
Diadochite specimen
Diadochite Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O
PhosphateMohs 3–4
D
Dickinsonite-(KMnNa) K(NaMn)CaNa₃AlMn₁₃(PO₄)₁₂(OH)₂
PhosphateMonoclinicMohs 3.5–4
Dixenite specimen
Dixenite Cu¹⁺Fe³⁺Mn²⁺₁₄(As⁵⁺O₄)(As³⁺O₃)₅(SiO₄)₂(OH)₆
SilicateHexagonalMohs 3–4
Dolomite specimen
Dolomite CaMg(CO₃)₂
CarbonateHexagonalMohs 3.5–4
D
Dovyrenite Ca₆Zr(Si₂O₇)₂(OH)₄
SilicateOrthorhombicMohs 3–4
D
Dufrénite Ca₀.₅Fe²⁺Fe³⁺₅(PO₄)₄(OH)₆·2H₂O
PhosphateMonoclinicMohs 3.5–4.5
D
Dukeite Bi³⁺₂₄Cr⁶⁺₈O₅₇(OH)₆·3H₂O
Oxides & HydroxideHexagonalMohs 3–4
Dyscrasite specimen
Dyscrasite Ag₃₊ₓSb₁₋ₓ (x ≈ 0.2)
SulfideOrthorhombicMohs 3.5–4
Earlshannonite specimen
Earlshannonite Mn²⁺Fe³⁺₂(PO₄)₂(OH)₂·4H₂O
PhosphateMonoclinicMohs 3–4
Edgarbaileyite specimen
Edgarbaileyite Hg¹⁺₆Si₂O₇
SilicateMonoclinicMohs 4
Edingtonite specimen
Edingtonite Ba(Si₃Al₂)O₁₀·4H₂O
SilicateOrthorhombicMohs 4–4.5
Eggletonite specimen
Eggletonite (Na,K,Ca)ₓMn₆(Si,Al)₁₀O₂₄(OH)₄·nH₂O (x = 1-2; n = 7-11)
SilicateMonoclinicMohs 3–4
E
Ellingsenite Na₅Ca₆Si₁₈O₃₈(OH)₁₃·6H₂O
SilicateTriclinicMohs 4
E
Emilite Cu₁₀.₇Pb₁₀.₇Bi₂₁.₃S₄₈
SulfosaltOrthorhombicMohs 3.5–4
Emmerichite specimen
Emmerichite Ba₂Ti₂Na₃Fe³⁺(Si₂O₇)₂O₂F₂
SilicateMonoclinicMohs 3–4
Ephesite specimen
Ephesite NaLiAl₂(Si₂Al₂)O₁₀(OH)₂
SilicateTriclinicMohs 3.5–4
Epistilbite specimen
Epistilbite Ca₃[Si₁₈Al₆O₄₈]·16H₂O
SilicateMonoclinicMohs 4
E
Ercitite NaMn³⁺(PO₄)(OH)·2H₂O
PhosphateOrthorhombicMohs 3–4
Erionite-K specimen
Erionite-K K₁₀[Si₂₆Al₁₀O₇₂]·30H₂O
SilicateHexagonalMohs 3.5–4
Euchroite specimen
Euchroite Cu₂(AsO₄)(OH)·3H₂O
ArsenateOrthorhombicMohs 3.5–4
Evansite specimen
Evansite Al₃(PO₄)(OH)₆·8H₂O
PhosphateAmorphousMohs 3–4
Eveite specimen
Eveite Mn²⁺₂(AsO₄)(OH)
ArsenateOrthorhombicMohs 4
F
Faizievite Li₆K₂Na(Ca₆Na)Ti₄(Si₆O₁₈)₂(Si₁₂O₃₀)F₂
SilicateTriclinicMohs 4–4.5
Feinglosite specimen
Feinglosite Pb₂Zn(AsO₄)₂·H₂O
ArsenateMonoclinicMohs 4–5
Ferberite specimen
Ferberite Fe²⁺(WO₄)
TungstateMonoclinicMohs 4–4.5
F
Ferrokësterite Cu₂FeSnS₄
SulfideTetragonalMohs 4
F
Ferrorosemaryite NaFe²⁺(Fe³⁺Al)(PO₄)₃
PhosphateMonoclinicMohs 4
Ferrostrunzite specimen
Ferrostrunzite Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂·6H₂O
PhosphateTriclinicMohs 4
Ferrotychite specimen
Ferrotychite Na₆Fe²⁺₂(CO₃)₄(SO₄)
SulfateCubicMohs 4
Ferrowyllieite specimen
Ferrowyllieite NaNaFe²⁺(Fe²⁺Al)(PO₄)₃
PhosphateMonoclinicMohs 4
Fersmite specimen
Fersmite (Ca,Ce,Na)(Nb,Ta,Ti)₂(O,OH,F)₆
HalideOrthorhombicMohs 4–4.5
Fivegite specimen
Fivegite K₄Ca₂[AlSi₇O₁₇(O₂₋ₓ(OH)ₓ)][(H₂O)₂₋ₓ(OH)ₓ]Cl (x = 0-2)
SilicateOrthorhombicMohs 4
Fluckite specimen
Fluckite CaMn²⁺(AsO₃OH)₂·2H₂O
ArsenateTriclinicMohs 3.5–4
F
Fluocerite-(La) LaF₃
HalideHexagonalMohs 4–5
F
Fluorarrojadite-(BaFe) Na₂CaBaFe²⁺Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)F₂
PhosphateMonoclinicMohs 4–5
F
Fluorcalciomicrolite (Ca,Na,   )₂Ta₂O₆F
HalideCubicMohs 4–5
Fluornatropyrochlore specimen
Fluornatropyrochlore (Na,Pb,Ca,REE,U)₂Nb₂O₆F
HalideCubicMohs 4–4.5
F
Fluorocronite PbF₂
HalideCubicMohs 3–4
F
Fluorotetraferriphlogopite KMg₃Fe³⁺Si₃O₁₀F₂
SilicateMonoclinicMohs 3–4
F
Fluorphosphohedyphane Ca₂Pb₃(PO₄)₃F
PhosphateHexagonalMohs 4
Foggite specimen
Foggite CaAl(PO₄)(OH)₂·H₂O
PhosphateOrthorhombicMohs 4
Fourmarierite specimen
Fourmarierite Pb₁₋ₓO₃₋₂ₓ(UO₂)₄(OH)₄₊₂ₓ·4H₂O
Oxides & HydroxideOrthorhombicMohs 3–4
Fraipontite specimen
Fraipontite (Zn,Al)₃(Si,Al)₂O₅(OH)₄
SilicateMonoclinicMohs 3.5–4
F
Franciscanite Mn²⁺₆(V⁵⁺   )(SiO₄)₂O₃(OH)₃
SilicateHexagonalMohs 4
Francisite specimen
Francisite Cu₃Bi(Se⁴⁺O₃)₂O₂Cl
HalideOrthorhombicMohs 3–4
F
Frankhawthorneite Cu₂Te⁶⁺O₄(OH)₂
Oxides & HydroxideMonoclinicMohs 3–4
Fresnoite specimen
Fresnoite Ba₂TiO(Si₂O₇)
SilicateTetragonalMohs 3–4
Friedelite specimen
Friedelite Mn²⁺₈Si₆O₁₅(OH)₁₀
SilicateMonoclinicMohs 4–5
Frohbergite specimen
Frohbergite FeTe₂
SulfideOrthorhombicMohs 3–4
Fukalite specimen
Fukalite Ca₄Si₂O₆(CO₃)(OH)₂
SilicateMonoclinicMohs 4
Fukuchilite specimen
Fukuchilite Cu₃FeS₈
SulfideCubicMohs 4
Gainesite specimen
Gainesite Na₂(Be,Li)Zr₂(PO₄)₄·1.5H₂O
PhosphateTetragonalMohs 4
G
Galileiite NaFe²⁺₄(PO₄)₃
PhosphateHexagonalMohs 4
G
Gallobeudantite PbGa₃(AsO₄)(SO₄)(OH)₆
ArsenateHexagonalMohs 4
G
Ganophyllite (K,Na)ₓMn²⁺₆(Si,Al)₁₀O₂₄(OH)₄·nH₂O (x = 1-2; n = 7-11)
SilicateMonoclinicMohs 4–4.5
G
Ganterite Ba₀.₅(Na,K)₀.₅Al₂(Si₂.₅Al₁.₅)O₁₀(OH)₂
SilicateMonoclinicMohs 4–4.5
Garronite-Na specimen
Garronite-Na Na₆(Al₆Si₁₀O₃₂)·8.5H₂O
SilicateMonoclinicMohs 4
G
Garyansellite Mg₂Fe³⁺(PO₄)₂(OH)·2H₂O
PhosphateOrthorhombicMohs 4
Gatehouseite specimen
Gatehouseite Mn²⁺₅(PO₄)₂(OH)₄
PhosphateOrthorhombicMohs 4
Gauthierite specimen
Gauthierite KPb[(UO₂)₇O₅(OH)₇]·8H₂O
Oxides & HydroxideMonoclinicMohs 3–4
Gayite specimen
Gayite NaMnFe₅(PO₄)₄(OH)₆·2H₂O
PhosphateMonoclinicMohs 4–5
G
George-ericksenite Na₆CaMg(IO₃)₆(CrO₄)₂·12H₂O
ChromateMonoclinicMohs 3–4
Germanite specimen
Germanite Cu₁₃Fe₂Ge₂S₁₆
SulfideCubicMohs 4
Gillespite specimen
Gillespite BaFe²⁺Si₄O₁₀
SilicateTetragonalMohs 3–4
G
Giniite Fe²⁺Fe³⁺₄(PO₄)₄(OH)₂·2H₂O
PhosphateMonoclinicMohs 3–4
Gittinsite specimen
Gittinsite CaZrSi₂O₇
SilicateMonoclinicMohs 3.5–4
G
Gladiusite Fe³⁺₂Fe²⁺₄(PO₄)(OH)₁₁·H₂O
PhosphateMonoclinicMohs 4–4.5
G
Glagolevite Na(Mg,Al)₆(Si₃Al)O₁₀(OH,O)₈
SilicateTriclinicMohs 3–5
Glaukosphaerite specimen
Glaukosphaerite CuNi(CO₃)(OH)₂
CarbonateMonoclinicMohs 3–4
Gmelinite-K specimen
Gmelinite-K K₄(Si₈Al₄)O₂₄·11H₂O
SilicateHexagonalMohs 4
Gobbinsite specimen
Gobbinsite Na₅(Si₁₁Al₅)O₃₂·11H₂O
SilicateOrthorhombicMohs 4
G
Goldquarryite CuCd₂Al₃(PO₄)₄F₃·10H₂O
PhosphateTriclinicMohs 3–4
Gormanite specimen
Gormanite Fe²⁺₃Al₄(PO₄)₄(OH)₆·2H₂O
PhosphateTriclinicMohs 4–5
G
Goryainovite Ca₂(PO₄)Cl
PhosphateOrthorhombicMohs 4
Goudeyite specimen
Goudeyite Cu₆Al(AsO₄)₃(OH)₆·3H₂O
ArsenateHexagonalMohs 3–4
Grayite specimen
Grayite (Th,Pb,Ca)(PO₄)·H₂O
PhosphateMohs 3–4
Greigite specimen
Greigite Fe²⁺Fe³⁺₂S₄
SulfideCubicMohs 4–4.5
Groutite specimen
Groutite Mn³⁺O(OH)
Oxides & HydroxideOrthorhombicMohs 3.5–4
Grumantite specimen
Grumantite NaSi₂O₄(OH)·H₂O
SilicateOrthorhombicMohs 4–5
Gyrolite specimen
Gyrolite NaCa₁₆(Si₂₃Al)O₆₀(OH)₈·14H₂O
SilicateTriclinicMohs 3–4
G
Görgeyite K₂Ca₅(SO₄)₆·H₂O
SulfateMonoclinicMohs 3.5–4
Haineaultite specimen
Haineaultite (Na,Ca)₅Ca(Ti,Nb)₅Si₁₂O₃₄(OH,F)₈·5H₂O
SilicateOrthorhombicMohs 3–4
Hammarite specimen
Hammarite Cu₂Pb₂Bi₄S₉
SulfosaltOrthorhombicMohs 3–4
H
Hanjiangite Ba₂Ca(V³⁺Al)(AlSi₃O₁₀)(OH)₂F(CO₃)₂
SilicateMonoclinicMohs 4
Hardystonite specimen
Hardystonite Ca₂ZnSi₂O₇
SilicateTetragonalMohs 4
Hauerite specimen
Hauerite MnS₂
SulfideCubicMohs 4
Heazlewoodite specimen
Heazlewoodite Ni₃S₂
SulfideTrigonalMohs 4
Heideite specimen
Heideite (Fe,Cr)₁.₁₅(Ti,Fe)₂S₄
SulfideMonoclinicMohs 3.5–4.5
Heidornite specimen
Heidornite Na₂Ca₃B₅O₈(SO₄)₂(OH)₂Cl
BorateMonoclinicMohs 4–5
Hemusite specimen
Hemusite Cu¹⁺₄Cu²⁺₂SnMoS₈
SulfideCubicMohs 4
Hennomartinite specimen
Hennomartinite SrMn³⁺₂(Si₂O₇)(OH)₂·H₂O
SilicateOrthorhombicMohs 4
Heterogenite specimen
Heterogenite Co³⁺O(OH)
Oxides & HydroxideHexagonalMohs 3–5
Heterosite specimen
Heterosite Fe³⁺(PO₄)
PhosphateOrthorhombicMohs 4–4.5
GroupHeulandite specimen
Heulandite (Ca,Na)₂Al₂Si₇O₁₈·6H₂O
SilicateMonoclinicMohs 3.5–4
Heulandite-Ca specimen
Heulandite-Ca (Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O
SilicateMonoclinicMohs 3.5–4
Heyite specimen
Heyite Pb₅Fe²⁺₂O₄(VO₄)₂
VanadateMonoclinicMohs 4

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