Cubic

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

ZnTe

6.34

82

(110)-p

Insoluble

ZrO2

5.64

990

None

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Ag2HgI4

6.091

–

–

–

Ag3AsS3

5.49

2–2.5 (Mohs)

(1011)

Insoluble

Ag3AsSe3

6.521

–

–

Insoluble

Ag3SbS3

5.82

2.5 (Mohs)

(1011)-i

Insoluble

AgAsS2

–

–

–

Insoluble

AgGaS2

4.702

–

(112)-p

Insoluble

AgGaSe2

5.70

–

(112)-p

Insoluble

AgI

5.7

1.5 (Mohs)

(0001)-p

Insoluble

Al2O3

3.98

1370

(1000)

None

9.8 × 10–5

AlAsO4

3.359

–

–

Insoluble

AlF3

3.192

–

–

–

AlGaO3

4.78

–

(0001)-p

Insoluble

AlN

3.261

–

–

Insoluble

AlPO4

2.566

5

(Mohs)

None

Insoluble

AlTiTaO6

6.26

–

–

Insoluble

Ba2B5O9Cl

3.762

–

–

Insoluble

Ba2MgAlF9

4.157

–

–

–

Ba2MgF6

5.08

–

–

Insoluble

Ba2MgGe2O7

4.79

–

(001)

Insoluble

Ba2MgSi2O7

4.265

–

(001)

Insoluble

Ba2Sc4O9

5.372

–

–

Insoluble

Ba2TiSi2O8

4.43

3.80

(001)-i

Insoluble

Ba2ZnF6

5.514

–

–

Insoluble

Ba2ZnGe2O7

–

–

(001)

Insoluble

Ba2ZnSi2O7

–

–

(001)

Insoluble

Ba2ZrSi2O8

–

–

–

Insoluble

Ba3(VO4)2

5.176

–

–

–

Ba3Sc4O9

5.318

–

–

Insoluble

Ba3SrNb2O9

–

–

–

Insoluble

Ba3SrTa2O9

–

–

–

Insoluble

Ba5(AsO4)3F

5.073

–

(1011)-i

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Ba5(AsO4)3Cl

5.086

4.5 (Mohs)

(0001)-i

Insoluble

Ba5(PO4)3Cl

4.802

–

–

Insoluble

Ba5(PO4)3F

4.81

–

(1011)-i

Insoluble

Ba5(VO4)3Cl

4.728

–

(1011)-i

Insoluble

Ba5(VO4)3F

4.766

–

(1011)-i

Insoluble

Ba6Sc6O15

5.115

–

–

Insoluble

BaAl12O19

4.075

–

–

Insoluble

BaAl2O4

4.080

–

–

Insoluble

β-BaB2O4

3.85

4

(Mohs)

(0001)-i

Slightly soluble

BaBe(PO4)F

4.31

–

None

Insoluble

BaGe4O9

–

–

None

Insoluble

BaMg2(VO4)2

4.226

–

–

–

BaMoO4

4.946

–

–

–

BaSb2O6

–

–

–

–

BaSnB2O6

4.848

–

–

Insoluble

BaSnSi3O9

4.03

6

(Mohs)

None

Insoluble

BaTiB2O6

4.211

–

–

Insoluble

BaTiO3

6.02

5

(Mohs)

–

Insoluble

BaTiSi3O9

3.64

6

(Mohs)

None

Insoluble

BaWO4

6.383

–

–

Insoluble

BaZnGeO4

5.12

–

–

Insoluble

BaZnSiO4

4.706

–

–

Insoluble

BaZrSi3O9

3.85

–

None

Insoluble

Be2GeO4

3.893

–

None

Insoluble

Be2SiO4

2.96

1100

(1010)

Insoluble

Be3Al2Si6O18

2.66

7.5–8 (Mohs)

None

Insoluble

Be3Sc2Si6O18

2.77

6.5 (Mohs)

None

Insoluble

BeMg3Al8O16

3.60

8.5 (Mohs)

–

Insoluble

BeO(dreyerite)

3.01

1250

(1010)-i

2 × 10–5 (20)

Bi2Ge3O9

6.20

5.5 GPa

(0001)-p

Insoluble

BiVO4 (dreyerite)

6.25

–

(110)-p

Insoluble

Ca2Al2GeO7

3.421

–

(001)

Insoluble

Ca2Al2SiO7

3.04

5.5 (Mohs)

(001)

Insoluble

Ca2Al3O6F

2.95

–

(1011)-i

Insoluble

Ca2B5O9Cl

2.639

–

–

Insoluble

Ca2BeSi2O7

–

–

–

Insoluble

Ca2Ga2GeO7

4.14

–

(001)

Insoluble

Ca2Ga2SiO7

4.07

–

(001)

Insoluble

Ca2MgSi2O7

2.94

5.5 (Mohs)

(001)-i

Insoluble

Ca2Te2O5

5.05

4

(Mohs)

(001)-p

Insoluble

Ca2ZnSi2O7

3.39

3.5 (Mohs)

(001)

Insoluble

Ca3B2O6

3.09

–

–

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Ca3Ga2Ge4O14

4.590

–

None

Insoluble

Ca4La(PO4)3O

–

–

–

Insoluble

Ca4Y6(SiO4)6O

–

–

None

Insoluble

Ca5(AsO4)3Cl

3.635

–

–

Insoluble

Ca5(AsO4)3F

3.5

4.5 (Mohs)

(1011)-i

Insoluble

Ca5(PO4)3Cl

2.90

5

(Mohs)

(0001)-i

Insoluble

Ca5(PO4)3F

3.20

540

(0001)-i

Insoluble

Ca5(VO4) 3F

–

–

(1011)-i

Insoluble

Ca5(VO4)3Cl

3.174

–

(1011)-i

Insoluble

CaAl12O19

3.78

–

–

Insoluble

CaAl2B2O7

2.44

–

–

–

CaCO3–calcite

2.715

75–135

(1011)-p

1.4 × 10–3 (25)

CaCO3–vaterite

2.68

3

(Mohs)

–

Insoluble

CaGd4(SiO4)3O

6.030

–

None

Insoluble

CaGdAlO4

5.97

716

(001)

Insoluble

CaGe4O9

–

–

None

Insoluble

CaLa4(SiO4)3O

5.112

–

None

Insoluble

CaLaAlO4

–

–

(001)

Insoluble

CaLaBO4

4.136

–

–

Insoluble

CaMg(CO3)2

2.86

3.5 (Mohs)

(1011)-p

Insoluble

CaMg3(CO3)4

3.71

335

(1011)-p

Insoluble

CaMoO4

4.25

4.0 (Mohs)

(112)(110)

–

CaSnB2O6

4.22

5.5 (Mohs)

(0001)-p

Insoluble

CaWO4

6.062

4.5–5 (Mohs)

(101)-i

6.4 × 10–4 (15)

CaY4(SiO4)3O

4.47

702

None

Insoluble

CaYAlO4

–

–

–

Insoluble

CaZrBAl9O18

4.01

8

(Mohs)

None

Insoluble

Cd5(AsO4)3Cl

5.917

–

(1011)-i

Insoluble

Cd5(PO4)3Cl

5.600

–

(1011)-i

Insoluble

Cd5(PO4)3F

5.784

–

(1011)-i

Insoluble

Cd5(VO4)3Cl

5.375

–

(1011)-i

Insoluble

CdCl2

4.047

–

–

140 (25)

CdCO3

5.02

–

(1011)-p

Insoluble

CdI2

5.670

–

–

86 (25)

CdS

4.82

122

(25)

(1122)-i

1.3 × 10–4 (18)

CdSe

5.81

44–90

–

Insoluble

CdSnB2O6

5.479

–

–

Insoluble

CdTiO3

5.881

–

–

Insoluble

Cs2AgF4

5.02

–

–

–

Cs2CdCl4

3.697

–

–

–

Cs2CdZnF6

5.342

–

–

–

Cs2KAl3F12

3.76

–

–

–

Cs2LiAl3F12

3.949

–

–

–

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Cs2LiAlF6

4.38

–

–

–

Cs2LiGa3F12

4.43

–

–

–

Cs2LiGaF6

4.406

–

–

–

Cs2NaAl3F12

3.817

–

–

–

Cs2NaAlF6

4.346

–

–

–

Cs2NaGaF6

4.654

–

–

–

Cs2SnGe3O9

5.145

–

–

Insoluble

Cs2TiGe3O9

4.835

–

–

Insoluble

CsAl(SO4)2

3.382

–

–

–

CsH2AsO4

3.747

1.5 (Mohs)

(101)-p

Very soluble

CsH2PO4

3.253

1.5 (Mohs)

(101)-p

Very soluble

CsSc(MoO4)2

3.54

–

(1011)-p

–

CsSc(WO4)2

4.74

–

(1011)-p

–

α-GaN

6.109

750

—

Insoluble

GaPO4

2.995

4

(Mohs)

None

Insoluble

GaS

3.86

–

–

–

GaSe

5.03

–

–

–

GdAl3(BO3)4

4.335

7

(Mohs)

(1011)

Insoluble

GdBO3

6.357

–

–

Insoluble

GdGa3(BO3)4

5.257

–

(1011)

Insoluble

GdInO3

7.41

–

–

–

GdVO4

5.474

–

(110)-p

Insoluble

GeO2

6.239

–

None

Insoluble

HfSiO4

6.97

–

(110)-i

Insoluble

Hg2Br2

7.68

1.5 (Mohs)

(110)

Insoluble

Hg2Cl2

7.15

1.5 (Mohs)

(110)-i

3 x 10–4

Hg2I2

7.68

–

–

Insoluble

HgI2

6.28

–

–

0.0055 (35)

HgS

8.10

2–2.5 (Mohs)

(1010)-p

1 × 10–6 (18)

In2O3

7.31

–

–

–

InBO3

5.555

–

(1011)-p

Insoluble

K2BiNb5O15

5.29

–

–

–

K2CaZr(SiO3)4

3.10

5.5 (Mohs)

None

Insoluble

K2GdNb5O15

5.147

–

–

Insoluble

K2LaNb5O15

4.921

–

–

Insoluble

K2MgCl4

2.13

–

–

–

K2MgF4

2.839

–

(001)-p

–

K2NaLi2Nb5O15

–

–

(001)-p

Insoluble

K2SnGe3O9

4.324

–

–

Insoluble

K2SnSi3O9

3.46

–

–

Insoluble

K2Sr(SO4)2

3.20

2

(Mohs)

(0001)-p

Slightly soluble

K2TiGe3O9

3.945

–

–

Insoluble

K2TiSi3O9

3.239

–

–

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

K2YNb5O15

4.807

–

–

Insoluble

K2ZnF4

3.378

–

(001)-p

–

K3LiNb5O15

4.376

–

(001)-p

Insoluble

K3Sc(VO4)2

3.02

–

–

Slightly soluble

KAl(MoO4)2

3.42

–

(1011)-p

–

KAl(SO4)2

2.481

–

–

–

KAlF4

3.009

–

–

–

KAlGeO4

3.617

–

–

Insoluble

KAlSi2O6

2.47

5.5 (Mohs)

None

Insoluble

KAlSiO4

2.59

6

(Mohs)

None

Insoluble

KD2PO4

–

1.5 (Mohs)

(101)-p

Very soluble

KGaGeO4

4.261

–

–

Insoluble

KGaSiO4

3.691

–

–

Insoluble

KH2PO4

2.338

1.5 (Mohs)

(101)-p

33 (25)

KIn(WO4)2

5.13

–

(1011)-p

–

KLa(MoO4)2

4.61

–

–

–

KLiBeF4

2.284

–

–

–

KSc(MoO4)2

3.23

–

(1011)-p

–

KSc(WO4)2

4.64

–

(1011)-p

–

KYF4

3.49

3

(Mohs)

None

Insoluble

KZnF3

4.018

2.5 (Mohs)

None

Insoluble

La2GeBe2O7

5.424

–

(001)

Insoluble

La2MoO6

5.834

–

(100)-p

–

La2O2S

5.75

350–450

–

–

La2O3

6.574

–

–

–

La2WO6

7.44

–

–

–

La3Ga5GeO14

–

–

None

Insoluble

La3Ga5SiO14

5.754

–

None

Insoluble

La3Nb0.5Ga5.5O14

5.934

–

None

Insoluble

La3Ta0.5Ga5.5O14

6.164

–

None

Insoluble

LaAlO3

–

–

–

Insoluble

LaBaGa3O7

5.60

–

(001)

Insoluble

LaBGeO5

5.04

–

–

Insoluble

LaBSiO5

4.58

–

–

Insoluble

LaCaAl3O7

–

–

(001)

Insoluble

LaCaGa3O7

–

–

(001)

Insoluble

LaCl3

3.85

–

–

–

LaF3

5.94

450

(0001)

Insoluble

LaMgAl11O19

4.285

–

–

Insoluble

LaSrGa3O7

5.64

–

(001)-i

Insoluble

Li2B4O7

2.44

–

None

Slightly soluble

Li2CaGeO4

3.63

–

–

Insoluble

Li2CaSiO4

2.935

–

–

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Li3InO3

4.394

–

–

–

LiAlGeO4

3.338

–

None

Insoluble

γ-LiAlO2

2.615

–

–

Insoluble

LiAlSiO4

2.66

6.5 (Mohs)

(1011)

Insoluble

LiCaAlF6

2.983

3.5 (Mohs)

None

0.005

LiCaGaF6

3.517

–

None

Very slightly soluble

LiCaInF6

–

–

None

Very slightly soluble

LiCdBO3

4.53

–

–

–

LiCdInF6

–

–

None

Very slightly soluble

LiGaGeO4

4.077

–

None

Insoluble

LiGaSiO4

3.445

–

–

Insoluble

LiGd(MoO4)2

5.273

–

–

–

LiGd(WO4)2

7.19

–

–

–

LiGdF4

5.343

3.5 (Mohs)

None

Insoluble

LiIO3

4.487

3.5 (Mohs)

–

80 (18)

LiLa(WO4)2

6.57

–

–

–

LiLuF4

6.186

3.5 (Mohs)

None

Insoluble

LiMgAlF6

3.14

–

–

Insoluble

LiMgGaF6

3.772

–

–

Insoluble

LiMgInF6

4.267

–

–

–

LiNbO3

4.644

5

(Mohs)

(1011)-p

Insoluble

LiSrAlF6

3.45

3.0 (Mohs)

None

0.05

LiSrGaF6

3.600

2.5 (Mohs)

None

0.10

LiTaO3

7.43

6

(Mohs)

(1011)

Insoluble

LiYF4

3.99

260–325

None

Insoluble

LiZnInF6

–

–

None

Very slightly soluble

LiZnNbO4

4.504

–

–

–

LuAl3(BO3)4

4.569

7

(Mohs)

(1011)

Insoluble

LuBO3

6.871

–

–

Insoluble

LuPO4

–

–

–

Insoluble

LuVO4

6.263

–

(110)-p

Insoluble

Mg2Al3(Si5Al)O18

2.53

7

(Mohs)

(1010)-i

Insoluble

MgCO3

3.00

4

(Mohs)

(1011)-p

Insoluble

MgF2

3.18

415

(010),(110)

< 2 × 10–4

MgTiO3

4.03

5.5 (Mohs)

(1011)-i

Insoluble

MnF2

4.478

–

–

0.66 (40)

Na2Al2B2O7

2.62

–

–

–

Na2Ca2Si3O9

2.840

–

–

Insoluble

Na2CO3

2.27

–

–

Very soluble

Na2Mg(CO3)2

2.74

3.5 (Mohs)

(0001)-i

–

Na2TiOSiO4

–

3.5 (Mohs)

(001)-p

Insoluble

Na3Li2Nb5O15

–

–

(001)-p

Insoluble

Na3YSi2O7

3.063

–

–

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Na5Al3F14

3.00

3.5 (Mohs)

(001)-p

–

Na5GdGe4O12

3.861

–

–

Insoluble

Na5GdSi4O12

3.213

–

–

Insoluble

Na5InGe4O12

3.831

–

–

Insoluble

Na5InSi4O12

3.134

–

–

Insoluble

Na5LuGe4O12

4.051

–

–

Insoluble

Na5LuSi4O12

3.348

–

–

Insoluble

Na5ScGe4O12

3.476

–

–

Insoluble

Na5ScSi4O12

2.743

–

–

Insoluble

Na5Y4(SiO4)4F

3.938

–

–

–

Na5YGe4O12

3.548

–

–

Insoluble

Na5YSi4O12

2.863

–

–

Insoluble

NaAlSiO4

2.63

–

–

Insoluble

NaBaPO4

4.270

1.5 (Mohs)

–

–

NaGd(WO4)2

7.184

–

–

–

NaGdO2

6.162

–

–

Slightly soluble

NaInO2

5.711

–

–

Slightly soluble

NaLa(MoO4)2

4.773

–

–

–

NaLaO2

4.949

–

–

Soluble

NaNO3

2.261

19.2(200)

(1010)-p

92 (25)

NaSbBe4O7

4.28

8 (Mohs)

(0001)-i

Insoluble

NaScO2

3.515

–

–

Slightly soluble

NaYF4

3.85

–

–

Insoluble

NbCaAlO4

5.56

–

–

Insoluble

NdxY1-xAl3 (BO3)4

–

8 (Mohs)

–

NH4Al(SeO4)2

3.13

–

–

–

NH4Al(SO4)2

2.472

–

–

–

NH4Ga(SeO4)2

3.476

–

–

–

NH4Ga(SO4)2

2.854

–

–

–

NH4H2PO4

1.803

1 (Mohs)

(101)-p

36.8 (20)

Pb2InNbO6

8.567

.

.

Insoluble

Pb2ZnSi2O7

–

–

(001)

Insoluble

Pb3Ca2(AsO4)3Cl

5.82

4.5 (Mohs)

(1011)-i

Insoluble

Pb3Ge2O7

–

–

–

Insoluble

Pb5(AsO4) 3F

–

–

(1011)-i

Insoluble

Pb5(AsO4)3Cl

7.28

3.5 (Mohs)

(1011)-i

Insoluble

Pb5(PO4)3Cl

7.04

3.5 (Mohs)

(1011)-i

Insoluble

Pb5(PO4)3F

6.868

(1011)-i

Insoluble

Pb5(VO4)3Cl

6.88

3 (Mohs)

None

Insoluble

Pb5(VO4)3F

7.155

–

(1011)-i

Insoluble

PbAl12O19

4.731

–

–

Insoluble

PbI2

6.16

–

–

0.076 (25)

PbMoO4

6.92

2.5–3 (Mohs)

(011)

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

PbO (litharge)

9.36

–

(110)-p

1.7 × 10–3 (20)

PbTiO3

–

–

–

Insoluble

PbWO4

8.23

2.5–3 (Mohs)

(001)-i

Insoluble

Rb2LaNb5O15

5.35

–

–

Insoluble

Rb2LiAlF6

3.878

–

–

–

Rb2LiGaF6

4.258

–

–

–

Rb2MgCl4

2.791

–

–

–

Rb2MgF4

3.972

–

(001)-p

–

Rb2SnGe3O9

4.850

–

–

Insoluble

Rb2SnSi3O9

4.103

–

–

Insoluble

Rb2TiGe3O9

4.425

–

–

Insoluble

Rb2TiSi3O9

3.626

–

–

Insoluble

Rb2ZnF4

4.637

–

(001)-p

–

Rb3Gd(VO4)2

4.50

–

–

Slightly soluble

Rb3Lu(VO4)2

4.56

–

–

Slightly soluble

Rb3NaBeF8

3.376

–

–

–

Rb3Sc(VO4)2

3.83

–

–

Slightly soluble

Rb3Y(VO4)2

3.76

–

–

Slightly soluble

RbAl(SeO4)2

3.725

–

–

–

RbAl(SO4)2

3.126

–

–

–

RbAlF4

3.792

–

–

–

RbAlSi2O6

2.893

–

–

Insoluble

RbCdF3

4.836

–

–

–

RbGa(SeO4)2

4.088

–

–

–

RbGa(SO4)2

3.504

–

–

–

RbH2AsO4

–

1.5 (Mohs)

(101)-p

Very soluble

RbH2PO4

–

1.5 (Mohs)

(101)-p

Very soluble

RbIn(MoO4)2

3.88

–

(1011)-p

–

RbIn(WO4)2

5.19

–

(1011)-p

–

RbSc(MoO4)2

3.41

–

(1011)-p

–

RbSc(WO4)2

4.68

–

(1011)-p

–

ScBO3

3.45

5

(Moh)

(1011)-p

Insoluble

ScPO4

–

–

–

Insoluble

ScVO4

–

–

–

–

Se

4.81

2.6 (Moh)

(0112)-i

Insoluble

SeO2

4.16

–

–

–

α-SiC

3.219

3720

None

Insoluble

Si3N4

3.24

3400

None

Insoluble

SiO2

2.65

741(500)

None

Insoluble

SnO2

6.95

6.5 (Mohs)

(100)-i

Insoluble

Sr2Al2SiO7

–

–

(001)

Insoluble

Sr2B5O9Cl

3.250

–

–

Insoluble

Sr2Ga2SiO7

–

–

(001)

Insoluble

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

Sr2MgGe2O7

4.266

–

(001)

Insoluble

Sr2MgSi2O7

–

–

(001)

Insoluble

Sr2ZnGe2O7

–

–

(001)

Insoluble

Sr2ZnSi2O7

4.027

–

(001)

Insoluble

Sr3(VO4)2

4.464

–

–

–

Sr3B2O6

4.257

–

–

Insoluble

Sr3Ga2Ge4O14

5.087

–

None

Insoluble

Sr3Ti2O7

5.04

–

–

Insoluble

Sr5(AsO4) 3F

4.538

–

(1011)-i

Insoluble

Sr5(AsO4)3Cl

4.525

–

–

Insoluble

Sr5(PO4)3Cl

4.095

–

–

Insoluble

Sr5(PO4)3F

4.14

380

(0001)-i

Insoluble

Sr5(VO4) 3F

4.13

–

(1011)-i

Insoluble

Sr5(VO4)3Cl

4.122

–

(1011)-i

Insoluble

Sr5Nb4O15

5.46

–

–

–

Sr5Ta4O15

7.321

–

–

Insoluble

SrAl12O19

3.985

–

–

Insoluble

SrAlF5

3.86

–

–

Insoluble

(Sr0.6Ba0.4)Nb2O6

5.4

5.5 (Mohs)

–

Insoluble

SrGaF5

4.40

–

–

Insoluble

SrGdAlO4

6.602

–

(001)-p

Insoluble

SrGdGa3O7

5.64

–

–

Insoluble

SrLa4(SiO4)3O

–

–

None

Insoluble

SrLaAlO4

5.826

–

(001)-p

Insoluble

SrLaBO4

4.802

–

–

Insoluble

SrLaGaO4

5.372

–

(001)-p

Insoluble

SrMg2(VO4)2

3.827

–

–

–

SrMoO4

4.701

–

–

–

SrSnB2O6

–

–

–

Insoluble

SrTiB2O6

–

–

–

Insoluble

SrWO4

6.354

–

–

Insoluble

SrY4(SiO4)3O

–

–

None

Insoluble

SrZrB2O6

–

–

–

Insoluble

Ta2O5

8.2

–

–

Insoluble

TaBO4

8.02

7.5 (Mohs)

(110)(010)

Insoluble

Te

6.25

18

None

Insoluble

ThSiO4

6.7

4.5 (Mohs)

None

Insoluble

TiO2

4.26

879

(500)

(110)-i

0.001

Tl2SnGe3O9

6.617

–

–

Insoluble

Tl2TiGe3O9

6.256

–

–

Insoluble

Tl3AsS3

7.18

–

–

Insoluble

Tl3AsSe3

7.834

–

–

Insoluble

TlAl(SeO4)2

4.894

–

–

–

Uniaxial

Density

Hardness

Cleavage

Solubility (ºC)

material

(g/cm3)

(kg/mm2)

plane

(g/100 g H2O)

TlAl(SO4)2

4.337

–

–

–

TlAlF4

6.131

–

–

–

TlGa(SeO4)2

5.163

–

–

–

TlGa(SO4)2

4.719

–

–

–

Y2BeAl2O7

–

–

(001)

Insoluble

Y2GeBe2O7

4.810

–

(001)

Insoluble

Y2SiBe2O7

4.423

–

(001)

Insoluble

YAl3(BO3)4

3.724

1890

(1011)

Insoluble

YAsO4

4.85

4.5 (Mohs)

–

Insoluble

YBO3

–

–

–

Insoluble

YCaAl3O7

–

–

(001)

Insoluble

YGa3(BO3)4

4.684

–

(1011)

Insoluble

YInO3

6.032

–

–

–

YPO4

4.31

4.5 (Mohs)

(110)-p

Insoluble

YVO4

4.23

480

(110)-p

Insoluble

Zn2GeO4

4.781

–

–

Insoluble

Zn2SiO4

4.25

5.5 (Mohs)

(0001)-i

Insoluble

ZnCO3

4.43

4

(Mohs)

(1011)-p

Insoluble

ZnCl2

2.907

–

–

408 (25)

ZnF2

4.95

–

–

1.62 (20)

ZnGeP2

–

–

–

Insoluble

ZnO

5.606

4

(Mohs)

(1010)-p

1.6 × 10–4 (20)

ZnSb2O6

6.64

6.5 (Mohs)

–

–

ZnSiP2

–

–

–

Insoluble

ZnS (wurtzite)

3.98

3.5 (Mohs)

(1120)-i

Insoluble

ZrO2

5.861

–

–

Insoluble

ZrSiO4

4.56

1000

(110)-i

Insoluble