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