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Mohs 2 minerals

The reference mineral for 2 is gypsum.

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624 minerals · Mohs 2 minerals
MineraloidAmber specimen
Amber C₁₀H₁₆O (fossil resin)
Organic MineralAmorphousMohs 2–2.5
Cinnabar specimen
Cinnabar HgS
SulfideHexagonalMohs 2–2.5
Gypsum specimen
Gypsum Ca(SO₄)·2H₂O
SulfateMonoclinicMohs 2
Muscovite specimen
Muscovite KAl₂(Si₃Al)O₁₀(OH)₂
SilicateMonoclinicMohs 2–2.5
VarietySelenite specimen
Selenite CaSO₄·2H₂O
SulfateMonoclinicMohs 2
Sulphur specimen
Sulphur S
Native ElementOrthorhombicMohs 1.5–2.5
Abernathyite specimen
Abernathyite K(UO₂)(AsO₄)·3H₂O
ArsenateTetragonalMohs 2–3
Abhurite specimen
Abhurite Sn²⁺₂₁O₆(OH)₁₄Cl₁₆
HalideHexagonalMohs 2
Acanthite specimen
Acanthite Ag₂S
SulfideMonoclinicMohs 2–2.5
Admontite specimen
Admontite MgB₆O₁₀·7H₂O
BorateMonoclinicMohs 2–3
A
Adolfpateraite K(UO₂)(SO₄)(OH)(H₂O)
SulfateMonoclinicMohs 2
A
Agaite Pb₃Cu²⁺Te⁶⁺O₅(OH)₂(CO₃)
CarbonateOrthorhombicMohs 2–3
A
Agmantinite Ag₂MnSnS₄
SulfideOrthorhombicMohs 2–2.5
Ahlfeldite specimen
Ahlfeldite Ni(SeO₃)·2H₂O
Oxides & HydroxideMonoclinicMohs 2–2.5
Aikinite specimen
Aikinite CuPbBiS₃
SulfosaltOrthorhombicMohs 2–2.5
Ajoite specimen
Ajoite K₃Cu²⁺₂₀Al₃Si₂₉O₇₆(OH)₁₆·8H₂O
SilicateTriclinicMohs 2
A
Albrechtschraufite MgCa₄F₂[UO₂(CO₃)₃]₂·17-18H₂O
CarbonateTriclinicMohs 2–3
Aldermanite specimen
Aldermanite [Mg(H₂O)₆][Na(H₂O)₂Al₃(PO₄)₂(OH)₆]·H₂O
PhosphateOrthorhombicMohs 2
A
Alfredstelznerite Ca₄(H₂O)₄[B₄O₄(OH)₆]₄(H₂O)₁₅
BorateOrthorhombicMohs 2
Aluminite specimen
Aluminite Al₂(SO₄)(OH)₄·7H₂O
SulfateMonoclinicMohs 1–2
Aluminium specimen
Aluminium Al
Native ElementCubicMohs 2–3
Aluminocopiapite specimen
Aluminocopiapite (Al,Mg)Fe³⁺₄(SO₄)₆(OH,O)₂·20H₂O
SulfateTriclinicMohs 2–3
Alunogen specimen
Alunogen Al₂(SO₄)₃(H₂O)₁₂·5H₂O
SulfateTriclinicMohs 1.5–2
A
Alwilkinsite-(Y) Y(UO₂)₃(SO₄)₂O(OH)₃(H₂O)₇·7H₂O
SulfateOrthorhombicMohs 2–2.5
Ambrinoite specimen
Ambrinoite [K,(NH₄)]₂(As,Sb)₆(Sb,As)₂S₁₃·H₂O
Oxides & HydroxideTriclinicMohs 2
Ammonioalunite specimen
Ammonioalunite (NH₄)Al₃(SO₄)₂(OH)₆
SulfateHexagonalMohs 2–3
A
Ammoniomagnesiovoltaite (NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O
SulfateCubicMohs 2–3
Andychristyite specimen
Andychristyite PbCu²⁺Te⁶⁺O₅(H₂O)
Oxides & HydroxideTriclinicMohs 2–3
Angastonite specimen
Angastonite CaMgAl₂(PO₄)₂(OH)₄·7H₂O
PhosphateAmorphousMohs 2
Annabergite specimen
Annabergite Ni₃(AsO₄)₂·8H₂O
ArsenateMonoclinicMohs 1.5–2.5
Antarcticite specimen
Antarcticite CaCl₂·6H₂O
HalideHexagonalMohs 2–3
Anthonyite specimen
Anthonyite Cu(OH)₂·3H₂O
Oxides & HydroxideMohs 2
Antipinite specimen
Antipinite KNa₃Cu₂(C₂O₄)₄
Organic MineralTriclinicMohs 2
A
Apachite Cu²⁺₉Si₁₀O₂₉·11H₂O
SilicateMonoclinicMohs 2
Apexite specimen
Apexite NaMg(PO₄)·9H₂O
PhosphateTriclinicMohs 2
A
Arangasite Al₂(SO₄)(PO₄)F·9H₂O
PhosphateMonoclinicMohs 1–2
A
Aravaipaite Pb₃AlF₉·H₂O
HalideTriclinicMohs 2
Arcanite specimen
Arcanite K₂(SO₄)
SulfateOrthorhombicMohs 2
Arsenolamprite specimen
Arsenolamprite As
Native ElementOrthorhombicMohs 2
A
Arsenovanmeersscheite U(UO₂)₃(AsO₄)₂(OH)₆·4H₂O
ArsenateOrthorhombicMohs 2
Arsenuranospathite specimen
Arsenuranospathite Al(UO₂)₂(AsO₄)₂F·20H₂O
ArsenateTetragonalMohs 2
Arsenuranylite specimen
Arsenuranylite Ca(UO₂)₄(AsO₄)₂(OH)₄·6H₂O
ArsenateOrthorhombicMohs 2–3
Arsiccioite specimen
Arsiccioite AgHg₂TlAs₂S₆
SulfosaltTetragonalMohs 2–2.5
A
Aspidolite NaMg₃(Si₃Al)O₁₀(OH)₂
SilicateTriclinicMohs 2–3
Astrocyanite-(Ce) specimen
Astrocyanite-(Ce) Cu₂Ce₂(UO₂)(CO₃)₅(OH)₂·1.5H₂O
CarbonateHexagonalMohs 2–3
A
Atlasovite Cu²⁺₆Fe³⁺Bi³⁺O₄(SO₄)₅·KCl
SulfateTetragonalMohs 2–2.5
Attikaite specimen
Attikaite Ca₃Cu₂Al₂(AsO₄)₄(OH)₄·2H₂O
ArsenateOrthorhombicMohs 2–2.5
Aurichalcite specimen
Aurichalcite (Zn,Cu)₅(CO₃)₂(OH)₆
CarbonateMonoclinicMohs 1–2
Autunite specimen
Autunite Ca(UO₂)₂(PO₄)₂·10-12H₂O
PhosphateOrthorhombicMohs 2–2.5
Avicennite specimen
Avicennite Tl₂O₃
Oxides & HydroxideCubicMohs 1.5–2.5
B
Babkinite Pb₂Bi₂(S,Se)₃
SulfosaltHexagonalMohs 2
B
Backite Pb₂AlTeO₆Cl
HalideHexagonalMohs 2–3
B
Bairdite Pb₂Cu²⁺₄Te⁶⁺₂O₁₀(OH)₂(SO₄)·H₂O
SulfateMonoclinicMohs 2–3
Bakhchisaraitsevite specimen
Bakhchisaraitsevite Na₂Mg₅(PO₄)₄·7H₂O
PhosphateMonoclinicMohs 2–2.5
Baksanite specimen
Baksanite Bi₆Te₂S₃
SulfideHexagonalMohs 1.5–2
B
Bamfordite Fe³⁺Mo₂O₆(OH)₃·H₂O
MolybdateTriclinicMohs 2–3
Barahonaite-(Al) specimen
Barahonaite-(Al) (Ca,Cu,Na,Fe³⁺,Al)₁₂Al₂(AsO₄)₈(OH,Cl)ₓ·nH₂O
ArsenateMonoclinicMohs 2–3
Barahonaite-(Fe) specimen
Barahonaite-(Fe) (Ca,Cu,Na,Fe³⁺,Al)₁₂Fe³⁺₂(AsO₄)₈(OH,Cl)ₓ·nH₂O
ArsenateMonoclinicMohs 2–3
B
Barlowite Cu₄BrF(OH)₆
HalideHexagonalMohs 2–2.5
B
Barrotite Cu₉Al(HSiO₄)₂[(SO₄)(HAsO₄)₀.₅](OH)₁₂·8H₂O
SilicateHexagonalMohs 2
B
Barytolamprophyllite (BaK)Ti₂Na₃Ti(Si₂O₇)₂O₂(OH)₂
SilicateMonoclinicMohs 2–3
Bayleyite specimen
Bayleyite Mg₂(UO₂)(CO₃)₃·18H₂O
CarbonateMonoclinicMohs 2–2.5
B
Baylissite K₂Mg(CO₃)₂·4H₂O
CarbonateMonoclinicMohs 2–3
Bazhenovite specimen
Bazhenovite Ca₈S₅(S₂O₃)(OH)₁₂·20H₂O
SulfateMonoclinicMohs 2
Bechererite specimen
Bechererite Zn₇Cu(OH)₁₃[SiO(OH)₃(SO₄)]
SilicateHexagonalMohs 2–3
Beidellite specimen
Beidellite (Na,Ca)₀.₃Al₂(Si,Al)₄O₁₀(OH)₂·nH₂O
SilicateMohs 1–2
B
Belakovskiite Na₇(UO₂)(SO₄)₄(SO₃OH)(H₂O)₃
SulfateTriclinicMohs 2
Belyankinite specimen
Belyankinite Ca₁₋₂(Ti,Zr,Nb)₅O₁₂·9H₂O
Oxides & HydroxideMohs 2–3
Bentorite specimen
Bentorite Ca₆Cr₂(SO₄)₃(OH)₁₂·26H₂O
SulfateHexagonalMohs 2
B
Bernardite TlAs₅S₈
SulfosaltMonoclinicMohs 2
Berthierite specimen
Berthierite FeSb₂S₄
SulfosaltOrthorhombicMohs 2–3
B
Beshtauite (NH₄)₂(UO₂)(SO₄)₂·2H₂O
SulfateMonoclinicMohs 2
Beyerite specimen
Beyerite CaBi₂O₂(CO₃)₂
CarbonateOrthorhombicMohs 2–3
Bieberite specimen
Bieberite Co(SO₄)·7H₂O
SulfateMonoclinicMohs 2
Bigcreekite specimen
Bigcreekite BaSi₂O₅·4H₂O
SilicateOrthorhombicMohs 2–3
B
Bijvoetite-(Y) Y₈(UO₂)₁₆O₈(CO₃)₁₆(OH)₈·39H₂O
CarbonateMonoclinicMohs 2
Bischofite specimen
Bischofite MgCl₂·6H₂O
HalideMonoclinicMohs 1–2
Bismuth specimen
Bismuth Bi
Native ElementTrigonalMohs 2–2.5
Bismuthinite specimen
Bismuthinite Bi₂S₃
SulfideOrthorhombicMohs 2–2.5
Blatonite specimen
Blatonite (UO₂)(CO₃)·H₂O
CarbonateMohs 2–3
B
Bleasdaleite Ca₂Cu₅(Bi,Cu)(PO₄)₄(H₂O,OH,Cl)₁₃
PhosphateMonoclinicMohs 2
Bluelizardite specimen
Bluelizardite Na₇(UO₂)(SO₄)₄Cl(H₂O)₂
SulfateMonoclinicMohs 2
B
Bluestreakite K₄Mg₂(V⁴⁺₂V⁵⁺₈O₂₈)·14H₂O
Oxides & HydroxideMonoclinicMohs 2
Bobierrite specimen
Bobierrite Mg₃(PO₄)₂·8H₂O
PhosphateMonoclinicMohs 2–2.5
B
Bodieite Bi³⁺₂(Te⁴⁺O₃)₂(SO₄)
SulfateMonoclinicMohs 2
B
Bojarite Cu₃(N₃C₂H₂)₃(OH)Cl₂·6H₂O
Organic MineralCubicMohs 2
Boothite specimen
Boothite Cu(SO₄)·7H₂O
SulfateMonoclinicMohs 2–2.5
Borax specimen
Borax Na₂B₄O₅(OH)₄·8H₂O
BorateMonoclinicMohs 2–2.5
Botryogen specimen
Botryogen MgFe³⁺(SO₄)₂(OH)·7H₂O
SulfateMonoclinicMohs 2–2.5
Boussingaultite specimen
Boussingaultite (NH₄)₂Mg(SO₄)₂·6H₂O
SulfateMonoclinicMohs 2
B
Bouškaite (MoO₂)₂O(SO₃OH)₂(H₂O)₂·2H₂O
MolybdateTriclinicMohs 2
Boyleite specimen
Boyleite Zn(SO₄)·4H₂O
SulfateMonoclinicMohs 2
B
Braithwaiteite NaCu²⁺₅(Sb⁵⁺Ti⁴⁺)O₂(AsO₄)₄[AsO₃(OH)]₂·8H₂O
ArsenateTriclinicMohs 2
Brandholzite specimen
Brandholzite MgSb₂(OH)₁₂·6H₂O
Oxides & HydroxideHexagonalMohs 2–3
B
Brugnatellite Mg₆Fe³⁺(CO₃)(OH)₁₃·4H₂O
CarbonateHexagonalMohs 2
B
Bubnovaite K₂Na₈Ca(SO₄)₆
SulfateHexagonalMohs 2–3
Bukovite specimen
Bukovite Cu₄Tl₂Se₄
SulfideTetragonalMohs 2
Bulachite specimen
Bulachite Al₆(AsO₄)₃(OH)₉(H₂O)₄·2H₂O
ArsenateOrthorhombicMohs 2
Burckhardtite specimen
Burckhardtite Pb₂(Fe³⁺Te⁶⁺)(AlSi₃O₈)O₆
SilicateHexagonalMohs 2
B
Burroite Ca₂(NH₄)₂(V₁₀O₂₈)·15H₂O
Oxides & HydroxideTriclinicMohs 1.5–2
B
Bílinite Fe²⁺Fe³⁺₂(SO₄)₄·22H₂O
SulfateMonoclinicMohs 2
Calciocopiapite specimen
Calciocopiapite CaFe³⁺₄(SO₄)₆(OH)₂·20H₂O
SulfateTriclinicMohs 2–3
Calcurmolite specimen
Calcurmolite (Ca₁₋ₓNaₓ)₂(UO₂)₃(MoO₄)₂(OH)₆₋ₓ·nH₂O
MolybdateMonoclinicMohs 2–3
Calumetite specimen
Calumetite CaCu₄(OH)₈Cl₂·3.5H₂O
HalideOrthorhombicMohs 2
C
Camgasite CaMg(AsO₄)(OH)·5H₂O
ArsenateMonoclinicMohs 2
Canaphite specimen
Canaphite Na₂CaP₂O₇·4H₂O
PhosphateMonoclinicMohs 2
Cannizzarite specimen
Cannizzarite Pb₈Bi₁₀S₂₃
SulfosaltMonoclinicMohs 2
C
Carboborite Ca₂Mg[B(OH)₄]₂(CO₃)₂·4H₂O
CarbonateMonoclinicMohs 2
Carbonatecyanotrichite specimen
Carbonatecyanotrichite Cu₄Al₂(CO₃)(OH)₁₂·2H₂O
CarbonateMohs 2
Caresite specimen
Caresite Fe²⁺₄Al₂(OH)₁₂(CO₃)·3H₂O
CarbonateHexagonalMohs 2
C
Carlosruizite K₃Na₂Na₃Mg₅(IO₃)₆(SeO₄)₆·6H₂O
IodateHexagonalMohs 2–3
C
Carlsonite (NH₄)₅Fe³⁺₃O(SO₄)₆·7H₂O
SulfateTriclinicMohs 2
Carnotite specimen
Carnotite K₂(UO₂)₂(VO₄)₂·3H₂O
VanadateMonoclinicMohs 2
C
Caseyite [(V⁵⁺O₂)Al₇.₅(OH)₁₅(H₂O)₁₃]₂[H₂V⁴⁺V⁵⁺₉O₂₈][V⁵⁺₁₀O₂₈]₂·90H₂O
Oxides & HydroxideMonoclinicMohs 2–3
C
Cattiite Mg₃(PO₄)₂·22H₂O
PhosphateTriclinicMohs 2
Celadonite specimen
Celadonite KMgFe³⁺Si₄O₁₀(OH)₂
SilicateMonoclinicMohs 2
Cesanite specimen
Cesanite Ca₂Na₃(SO₄)₃OH
SulfateHexagonalMohs 2–3
C
Chadwickite (UO₂)(HAsO₃)
ArsenateTetragonalMohs 2
Chalcomenite specimen
Chalcomenite Cu(Se⁴⁺O₃)·2H₂O
Oxides & HydroxideOrthorhombicMohs 2–2.5
Chalcophyllite specimen
Chalcophyllite Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄·36H₂O
ArsenateHexagonalMohs 2
Chalcothallite specimen
Chalcothallite (Cu,Fe,Ag)₆.₃(Tl,K)₂SbS₄
SulfosaltTetragonalMohs 2–2.5
Challacolloite specimen
Challacolloite KPb₂Cl₅
HalideMonoclinicMohs 2–3
Chanabayaite specimen
Chanabayaite Cu₂Cl(N₃C₂H₂)₂(NH₃,Cl,H₂O,   )₄
Organic MineralOrthorhombicMohs 2
Changoite specimen
Changoite Na₂Zn(SO₄)₂·4H₂O
SulfateMonoclinicMohs 2–3
C
Chaoite C
Native ElementHexagonalMohs 1–2
GroupChlorite specimen
Chlorite (Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
SilicateMonoclinicMohs 2–2.5
Christite specimen
Christite TlHgAsS₃
SulfosaltMonoclinicMohs 1–2
C
Chromceladonite KMgCr(Si₄O₁₀)(OH)₂
SilicateMonoclinicMohs 1–2
C
Chromschieffelinite Pb₁₀Te⁶⁺₆O₂₀(OH)₁₄(CrO₄)(H₂O)₅
ChromateOrthorhombicMohs 2
Chrysocolla specimen
Chrysocolla (Cu₂₋ₓAlₓ)H₂₋ₓSi₂O₅(OH)₄·nH₂O
SilicateAmorphousMohs 2–4
C
Chubarovite KZn₂(BO₃)Cl₂
BorateHexagonalMohs 2
C
Chukotkaite AgPb₇Sb₅S₁₅
SulfosaltMohs 2–2.5
C
Cianciulliite Mg₂Mn²⁺Zn₂(OH)₁₀·2-4H₂O
Oxides & HydroxideMonoclinicMohs 2
Claraite specimen
Claraite (Cu,Zn)₁₅(CO₃)₄(AsO₄)₂(SO₄)(OH)₁₄·7H₂O
ArsenateHexagonalMohs 2
Clinobehoite specimen
Clinobehoite Be(OH)₂
Oxides & HydroxideMonoclinicMohs 2–3
Clinochlore specimen
Clinochlore Mg₅Al(AlSi₃O₁₀)(OH)₈
SilicateTriclinicMohs 2–2.5
Cloncurryite specimen
Cloncurryite Cu₀.₅(VO)₀.₅Al₂(PO₄)₂F₂·5H₂O
PhosphateMonoclinicMohs 2
C
Coalingite Mg₁₀Fe³⁺₂(CO₃)(OH)₂₄·2H₂O
CarbonateHexagonalMohs 1–2
Cobaltkoritnigite specimen
Cobaltkoritnigite Co(AsO₃OH)·H₂O
ArsenateTriclinicMohs 2
C
Cobaltzippeite Co(UO₂)₂(SO₄)O₂·3.5H₂O
SulfateMonoclinicMohs 2
Coiraite specimen
Coiraite (Pb,Sn)₁₂.₅As₃Sn₅FeS₂₈
SulfosaltMonoclinicMohs 2
Comancheite specimen
Comancheite Hg²⁺₅₅N³⁻₂₄(NH₂,OH)₄(Cl,Br)₃₄
HalideOrthorhombicMohs 2
C
Comblainite Ni₄Co³⁺₂(CO₃)(OH)₁₂·3H₂O
CarbonateHexagonalMohs 2
C
Coutinhoite ThₓBa₁₋₂ₓ(UO₂)₂Si₅O₁₃·3H₂O
SilicateOrthorhombicMohs 2
Covellite specimen
Covellite CuS
SulfideHexagonalMohs 1.5–2
C
Cryobostryxite KZnCl₃·2H₂O
HalideMonoclinicMohs 2
Cualstibite specimen
Cualstibite Cu₂Al(OH)₆[Sb(OH)₆]
Oxides & HydroxideHexagonalMohs 2
Currierite specimen
Currierite Na₄Ca₃MgAl₄(AsO₃OH)₁₂·9H₂O
ArsenateHexagonalMohs 2
Cymrite specimen
Cymrite Ba(Si,Al)₄(O,OH)₈·H₂O
SilicateMonoclinicMohs 2–3
D
Dagenaisite Zn₃Te⁶⁺O₆
Oxides & HydroxideMonoclinicMohs 2
Daliranite specimen
Daliranite PbHgAs₂S₅
SulfosaltMonoclinicMohs 2
Danielsite specimen
Danielsite (Cu,Ag)₁₄HgS₈
SulfideOrthorhombicMohs 2–2.5
Daubréeite specimen
Daubréeite BiO(OH)
Oxides & HydroxideTetragonalMohs 2–2.5
D
Davidbrownite-(NH4) (NH₄)₅(V⁴⁺O)₂(C₂O₄)[PO₂.₇₅(OH)₁.₂₅]₄·3H₂O
Organic MineralMonoclinicMohs 2
Davreuxite specimen
Davreuxite Mn²⁺Al₆Si₄O₁₇(OH)₂
SilicateMonoclinicMohs 2–3
D
Debattistiite Ag₉Hg₀.₅As₆S₁₂Te₂
SulfosaltTriclinicMohs 2–2.5
D
Deliensite Fe²⁺(UO₂)₂(SO₄)₂(OH)₂·7H₂O
SulfateOrthorhombicMohs 2
D
Delrioite Sr(VO₃)₂·4H₂O
VanadateMonoclinicMohs 2
Desautelsite specimen
Desautelsite Mg₆Mn³⁺₂(CO₃)(OH)₁₆·4H₂O
CarbonateHexagonalMohs 2
Deveroite-(Ce) specimen
Deveroite-(Ce) Ce₂(C₂O₄)₃·10H₂O
Organic MineralMonoclinicMohs 2–2.5
Dickite specimen
Dickite Al₂Si₂O₅(OH)₄
SilicateMonoclinicMohs 2–2.5
Dietrichite specimen
Dietrichite ZnAl₂(SO₄)₄·22H₂O
SulfateMonoclinicMohs 2
D
Dokuchaevite Cu₈O₂(VO₄)₃Cl₃
VanadateTriclinicMohs 2
Donharrisite specimen
Donharrisite Ni₃HgS₃
SulfideMonoclinicMohs 2
D
Dreyerite Bi(VO₄)
VanadateTetragonalMohs 2–3
Dritsite specimen
Dritsite Li₂Al₄(OH)₁₂Cl₂·3H₂O
HalideHexagonalMohs 2
Dundasite specimen
Dundasite PbAl₂(CO₃)₂(OH)₄·H₂O
CarbonateOrthorhombicMohs 2
E
Eckhardite (Ca,Pb)Cu²⁺Te⁶⁺O₅(H₂O)
Oxides & HydroxideMonoclinicMohs 2–3
E
Efremovite (NH₄)₂Mg₂(SO₄)₃
SulfateCubicMohs 2
Elyite specimen
Elyite CuPb₄(SO₄)O₂(OH)₄·H₂O
SulfateMonoclinicMohs 2
Emplectite specimen
Emplectite CuBiS₂
SulfosaltOrthorhombicMohs 2
Epistolite specimen
Epistolite (Na   )Nb₂Na₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₄
SilicateTriclinicMohs 1.5–3
Epsomite specimen
Epsomite Mg(SO₄)·7H₂O
SulfateOrthorhombicMohs 2–2.5
Erionite-Ca specimen
Erionite-Ca Ca₅[Si₂₆Al₁₀O₇₂]·30H₂O
SilicateHexagonalMohs 2–3
Ernienickelite specimen
Ernienickelite NiMn⁴⁺₃O₇·3H₂O
Oxides & HydroxideHexagonalMohs 2
E
Erniggliite Tl₂SnAs₂S₆
SulfosaltHexagonalMohs 2–3
E
Ernstburkeite Mg(CH₃SO₃)₂·12H₂O
Organic MineralHexagonalMohs 2
Ershovite specimen
Ershovite K₃Na₄(Fe,Mn,Ti)₂Si₈O₂₀(OH,O)₄·4H₂O
SilicateTriclinicMohs 2–3
Erythrite specimen
Erythrite Co₃(AsO₄)₂·8H₂O
ArsenateMonoclinicMohs 1.5–2.5
E
Espadaite Na₄Ca₃Mg₂[AsO₃(OH)]₂[AsO₂(OH)₂]₁₀(H₂O)₆·H₂O
ArsenateOrthorhombicMohs 2
Esquireite specimen
Esquireite BaSi₆O₁₃·7H₂O
SilicateMonoclinicMohs 2
Ettringite specimen
Ettringite Ca₆Al₂(SO₄)₃(OH)₁₂·27H₂O
SulfateHexagonalMohs 2–2.5
E
Ewingite Mg₈Ca₈(UO₂)₂₄(CO₃)₃₀O₄(OH)₁₂(H₂O)₁₃₈
CarbonateTetragonalMohs 2
Fairbankite specimen
Fairbankite Pb²⁺₁₂(Te⁴⁺O₃)₁₁(SO₄)
SulfateTriclinicMohs 2
Falcondoite specimen
Falcondoite Ni₄Si₆O₁₅(OH)₂·6H₂O
SilicateOrthorhombicMohs 2–3
F
Falgarite K₄(VO)₃(SO₄)₅
SulfateMonoclinicMohs 2–3
F
Falsterite Ca₂MgMn²⁺₂Fe²⁺₂Fe³⁺₂Zn₄(PO₄)₈(OH)₄(H₂O)₁₄
PhosphateMonoclinicMohs 2
Fangite specimen
Fangite Tl₃AsS₄
SulfosaltOrthorhombicMohs 2–2.5
Fassinaite specimen
Fassinaite Pb₂(CO₃)(S₂O₃)
SulfateOrthorhombicMohs 1.5–2
Ferraioloite specimen
Ferraioloite MgMn²⁺₄(Fe²⁺₀.₅Al₀.₅)₄Zn₄(PO₄)₈(OH)₄(H₂O)₂₀
PhosphateMonoclinicMohs 2
Ferribushmakinite specimen
Ferribushmakinite Pb₂Fe³⁺(PO₄)(VO₄)(OH)
PhosphateMonoclinicMohs 2
Ferricopiapite specimen
Ferricopiapite Fe³⁺₀.₆₇Fe³⁺₄(SO₄)₆(OH)₂·20H₂O
SulfateTriclinicMohs 2
Ferrimolybdite specimen
Ferrimolybdite Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O
Oxides & HydroxideMohs 1–2
Ferripyrophyllite specimen
Ferripyrophyllite Fe³⁺Si₂O₅(OH)
SilicateMonoclinicMohs 1.5–2
F
Ferrisepiolite (Fe³⁺,Fe²⁺,Mg)₄[(Si,Fe³⁺)₆O₁₅](O,OH)₂·6H₂O
SilicateOrthorhombicMohs 2–2.5
Ferrisurite specimen
Ferrisurite Pb₂.₄Fe³⁺₂Si₄O₁₀(CO₃)₁.₇(OH)₃·nH₂O
SilicateMonoclinicMohs 2–2.5
Ferrosaponite specimen
Ferrosaponite Ca₀.₃(Fe²⁺,Mg,Fe³⁺)₃(Si,Al)₄O₁₀(OH)₂·4H₂O
SilicateMonoclinicMohs 2
F
Fizélyite Ag₅Pb₁₄Sb₂₁S₄₈
SulfosaltMonoclinicMohs 2
F
Flinteite K₂ZnCl₄
HalideOrthorhombicMohs 2
Freieslebenite specimen
Freieslebenite AgPbSbS₃
SulfosaltMonoclinicMohs 2–2.5
Fuenzalidaite specimen
Fuenzalidaite K₃Na₅Mg₅(IO₃)₆(SO₄)₆·6H₂O
IodateHexagonalMohs 2–3
Fuettererite specimen
Fuettererite Pb₃Cu²⁺₆Te⁶⁺O₆(OH)₇Cl₅
HalideHexagonalMohs 2–3
Gabrielite specimen
Gabrielite Tl₂AgCu₂As₃S₇
SulfosaltTriclinicMohs 1.5–2
G
Gatewayite Ca₆(As³⁺V⁴⁺₃V⁵⁺₉As⁵⁺₆O₅₁)·31H₂O
Oxides & HydroxideMonoclinicMohs 2
Gearksutite specimen
Gearksutite CaAlF₄(OH)·H₂O
HalideTriclinicMohs 2
Gerasimovskite specimen
Gerasimovskite Mn²⁺(Ti,Nb)₅O₁₂·9H₂O
Oxides & HydroxideMohs 2
Gerhardtite specimen
Gerhardtite Cu₂(NO₃)(OH)₃
NitrateOrthorhombicMohs 2
G
Geschieberite K₂(UO₂)(SO₄)₂·2H₂O
SulfateOrthorhombicMohs 2
Getchellite specimen
Getchellite SbAsS₃
SulfideMonoclinicMohs 1.5–2
Giacovazzoite specimen
Giacovazzoite K₅Fe³⁺₃O(SO₄)₆·10H₂O
SulfateMonoclinicMohs 2
Gilalite specimen
Gilalite Cu₅Si₆O₁₇·7H₂O
SilicateMonoclinicMohs 2
Gillulyite specimen
Gillulyite Tl₂As₇.₅Sb₀.₃S₁₃
SulfosaltMonoclinicMohs 2–2.5
Gladite specimen
Gladite CuPbBi₅S₉
SulfosaltOrthorhombicMohs 2–3
G
Gladkovskyite MnTlAs₃S₆
SulfosaltMohs 2–2.5
GroupGlauconite specimen
Glauconite (K,Na)(Fe,Al,Mg)₂(Si,Al)₄O₁₀(OH)₂
SilicateMonoclinicMohs 2
G
Glikinite Zn₃O(SO₄)₂
SulfateMonoclinicMohs 2–3
G
Glushinskite Mg(C₂O₄)·2H₂O
Organic MineralMonoclinicMohs 2
Godovikovite specimen
Godovikovite (NH₄)Al(SO₄)₂
SulfateHexagonalMohs 2
Goslarite specimen
Goslarite Zn(SO₄)·7H₂O
SulfateOrthorhombicMohs 2–2.5
Grandviewite specimen
Grandviewite Cu₃Al₂(SO₄)(OH)₁₀·H₂O
SulfateTriclinicMohs 2
Graphite specimen
Graphite C
Native ElementOrthorhombicMohs 1–2
G
Greenlizardite (NH₄)Na(UO₂)₂(SO₄)₂(OH)₂·4H₂O
SulfateTriclinicMohs 2
Grimselite specimen
Grimselite K₃Na(UO₂)(CO₃)₃·H₂O
CarbonateHexagonalMohs 2–2.5
G
Grootfonteinite Pb₃O(CO₃)₂
CarbonateHexagonalMohs 2
G
Grundmannite CuBiSe₂
SulfosaltOrthorhombicMohs 2–2.5
G
Gungerite TlAs₅Sb₄S₁₃
SulfosaltOrthorhombicMohs 2–2.5
G
Gwihabaite (NH₄)(NO₃)
NitrateOrthorhombicMohs 2
H
Hagstromite Pb₈Cu²⁺(Te⁶⁺O₆)₂(CO₃)Cl₄
CarbonateOrthorhombicMohs 2–3
Haidingerite specimen
Haidingerite Ca(AsO₃OH)·H₂O
ArsenateOrthorhombicMohs 2–2.5
H
Haigerachite KFe³⁺₃(H₂PO₄)₆(HPO₄)₂·4H₂O
PhosphateMonoclinicMohs 2
Halloysite-7Å specimen
Halloysite-7Å Al₂Si₂O₅(OH)₄
SilicateMonoclinicMohs 2–2.5
H
Hansblockite (Cu,Hg)(Bi,Pb)Se₂
SulfosaltMonoclinicMohs 2–2.5
H
Hansesmarkite Ca₂Mn₂Nb₆O₁₉·20H₂O
Oxides & HydroxideTriclinicMohs 2–2.5
Hauckite specimen
Hauckite Fe³⁺₃Mg₂₄Zn₁₈(SO₄)₄(CO₃)₂(OH)₈₁
SulfateHexagonalMohs 2–3
Haydeeite specimen
Haydeeite Cu₃Mg(OH)₆Cl₂
HalideHexagonalMohs 2
Haynesite specimen
Haynesite (UO₂)₃(Se⁴⁺O₃)₂(OH)₂·5H₂O
Oxides & HydroxideOrthorhombicMohs 1.5–2
H
Hazenite KNaMg₂(PO₄)₂·14H₂O
PhosphateOrthorhombicMohs 2–2.5
H
Hectorfloresite Na₉(IO₃)(SO₄)₄
IodateMonoclinicMohs 2
Hectorite specimen
Hectorite Na₀.₃(Mg,Li)₃Si₄O₁₀(F,OH)₂·nH₂O
SilicateMohs 1–2
Hedleyite specimen
Hedleyite Bi₇Te₃
SulfideHexagonalMohs 2

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