Material ID Name Category Mass density Electrical conductivity Dielectric constant Activation energy Delta Breakdown efield (V/m) RIC dose rate /kp
a-150_tissue | G4_A-150_TISSUE A-150 Tissue tissue_proxy 1.127
acetone | G4_ACETONE Acetone organic_compound 0.7899
acetylene | G4_ACETYLENE Acetylene organic_compound 0.0010967
actinium | G4_Ac Actinium (Ac)
Z: 89 | A: 227.0278 		metal 10.07
adenine | G4_ADENINE Adenine organic_compound 1.6
adipose_tissue_icrp | G4_ADIPOSE_TISSUE_ICRP Adipose Tissue ICRP tissue_proxy 0.95
air_gas | G4_AIR Air (Gas) gas 0.00120479
alanine | G4_ALANINE Alanine organic_compound 1.42
aluminium | G4_Al Aluminium (Al)
Z: 13 | A: 26.981539 		['metal', 'element'] 2.702 37.7
aluminum_oxide | G4_ALUMINUM_OXIDE Aluminum Oxide inorganic_salt 3.97
amber | G4_AMBER Amber organic_compound 1.1
ammonia_gas | G4_AMMONIA Ammonia (Gas) organic_compound 0.000826019
aniline | G4_ANILINE Aniline organic_compound 1.0235
anthracene | G4_ANTHRACENE Anthracene organic_compound 1.283
antimony | G4_Sb Antimony (Sb)
Z: 51 | A: 121.76 		metal 6.684 2.88
argon_gas | G4_Ar Argon (gas) (Ar)
Z: 18 | A: 39.948 		gas 0.0017824
argon_liquid | G4_lAr Argon (liquid) liquid 1.396
arsenic_grey | G4_As Arsenic (grey) (As)
Z: 33 | A: 74.92159 		semi_conductor 5.72 3.45
astatine | G4_At Astatine (At)
Z: 85 | A: 209.9871 		non_metal
b-100_bone | G4_B-100_BONE B-100 Bone tissue_proxy 1.45
bakelite | G4_BAKELITE Bakelite organic_compound 1.25
barium | G4_Ba Barium (Ba)
Z: 56 | A: 137.327 		metal 3.59 3
barium_fluoride | G4_BARIUM_FLUORIDE Barium Fluoride inorganic_salt 4.89
barium_sulfate | G4_BARIUM_SULFATE Barium Sulfate inorganic_salt 4.5
benzene | G4_BENZENE Benzene organic_compound 0.87865
beryllium | G4_Be Beryllium (Be)
Z: 4 | A: 9.01218 		metal 1.848 31.3
beryllium_oxide | G4_BERYLLIUM_OXIDE Beryllium Oxide inorganic_salt 3.01
bgo | G4_BGO Bismuth Germanate inorganic_salt 7.13
bismuth | G4_Bi Bismuth (Bi)
Z: 83 | A: 208.98037 		metal 9.75 0.867
blood_icrp | G4_BLOOD_ICRP Blood ICRP tissue_proxy 1.06
bone_compact_icru | G4_BONE_COMPACT_ICRU Bone Compact ICRU tissue_proxy 1.85
bone_cortical_icrp | G4_BONE_CORTICAL_ICRP Bone Cortical ICRP tissue_proxy 1.92
boron | G4_B Boron (B)
Z: 5 | A: 10.811 		non_metal 2.34 1e-10
boron_carbide | G4_BORON_CARBIDE Boron Carbide inorganic_salt 2.52
boron_oxide | G4_BORON_OXIDE Boron Oxide inorganic_salt 1.812
brain_icrp | G4_BRAIN_ICRP Brain ICRP tissue_proxy 1.04
brass | G4_BRASS Brass alloy 8.52
bromine | G4_Br Bromine (Br)
Z: 35 | A: 79.904 		liquid 3.119
bronze | G4_BRONZE Bronze alloy 8.82
cadmium | G4_Cd Cadmium (Cd)
Z: 48 | A: 112.411 		metal 8.65 13.8
cadmium_telluride | G4_CADMIUM_TELLURIDE Cadmium Telluride inorganic_salt 6.2
cadmium_tungstate | G4_CADMIUM_TUNGSTATE Cadmium Tungstate inorganic_salt 7.9
calcium | G4_Ca Calcium (Ca)
Z: 20 | A: 40.078 		metal 1.55 29.8
calcium_carbonate | G4_CALCIUM_CARBONATE Calcium Carbonate inorganic_salt 2.8
calcium_fluoride | G4_CALCIUM_FLUORIDE Calcium Fluoride inorganic_salt 3.18
calcium_oxide | G4_CALCIUM_OXIDE Calcium Oxide inorganic_salt 3.3
calcium_sulfate | G4_CALCIUM_SULFATE Calcium Sulfate inorganic_salt 2.96
calcium_tungstate | G4_CALCIUM_TUNGSTATE Calcium Tungstate inorganic_salt 6.062
carbon_fibre_no_resin Carbon fibre (no resin) non_metal
carbon_graphite | G4_C Carbon (graphite) (C)
Z: 6 | A: 12.011 		non_metal 2.26 0.061
cellulose_butyrate | G4_CELLULOSE_BUTYRATE Cellulose Butyrate organic_compound 1.2
cellulose_cellophane | G4_CELLULOSE_CELLOPHANE Cellulose Cellophane organic_compound 1.42
cellulose_nitrate | G4_CELLULOSE_NITRATE Cellulose Nitrate inorganic_salt 1.49
cerium | G4_Ce Cerium (Ce)
Z: 58 | A: 140.115 		metal 6.77 1.15
cerium_sulfate | G4_CERIC_SULFATE Cerium Sulfate inorganic_salt 1.03
cesium | G4_Cs Cesium (Cs)
Z: 55 | A: 132.90543 		metal 1.873 4.89
cesium_fluoride | G4_CESIUM_FLUORIDE Cesium Fluoride inorganic_salt 4.115
chlorine_gas | G4_Cl Chlorine (gas) (Cl)
Z: 17 | A: 35.4527 		gas 0.003214
chromium | G4_Cr Chromium (Cr)
Z: 24 | A: 51.9961 		metal 7.19 7.74
cobalt | G4_Co Cobalt (Co)
Z: 27 | A: 58.9332 		metal 8.9 17.2
copper | G4_Cu Copper (Cu)
Z: 29 | A: 63.546 		['metal', 'element'] 8.96 59.6
dysprosium | G4_Dy Dysprosium (Dy)
Z: 66 | A: 162.5 		metal 8.55 1.08
electrodag_501 Electrodag 501 organic_compound
epoxy Epoxy common_dielectric 1.5 2.5e-15 3.6 0 1 10000000.0 6.5e-14
erbium | G4_Er Erbium (Er)
Z: 68 | A: 167.26 		metal 9.07 1.17
etfe ETFE common_dielectric 1.7 1e-16 2.5 0 0.8 10000000.0 2e-14
europium | G4_Eu Europium (Eu)
Z: 63 | A: 151.965 		metal 5.24 1.12
eye_lens_icrp | G4_EYE_LENS_ICRP Eye Lens Icrp tissue_proxy 1.07
ferric_oxide | G4_FERRIC_OXIDE Ferric Oxide inorganic_salt 5.2
ferroboride | G4_FERROBORIDE Ferroboride inorganic_salt 7.15
ferrous_oxide | G4_FERROUS_OXIDE Ferrous Oxide inorganic_salt 5.7
ferrous_sulfate | G4_FERROUS_SULFATE Ferrous Sulfate inorganic_salt 1.024
fluorine_gas | G4_F Fluorine (gas) (F)
Z: 9 | A: 18.998403 		gas 0.001696
fr4 FR4 organic_compound 2.06 8.48e-16 5.59 2.44 1 10000000.0 1.73e-20
francium | G4_Fr Francium (Fr)
Z: 87 | A: 223.0197 		metal 3
gadolinium | G4_Gd Gadolinium (Gd)
Z: 64 | A: 157.25 		metal 7.895 0.736
gadolinium_oxysulfide | G4_GADOLINIUM_OXYSULFIDE Gadolinium Oxysulfide inorganic_salt 7.44
gallium | G4_Ga Gallium (Ga)
Z: 31 | A: 69.723 		metal 5.907 6.78
gallium_arsenide | G4_GALLIUM_ARSENIDE Gallium Arsenide inorganic_salt 5.31
germanium | G4_Ge Germanium (Ge)
Z: 32 | A: 72.61 		semi_conductor 5.323 1.45e-06
glass_borosilicate Glass Borosilicate common_dielectric 2.3 1e-12 6.7 0 1 10000000.0 1e-14
glass_cmx Glass CMX common_dielectric 2.61 1e-13 3.8 0 1 10000000.0 1e-14
glass_lead | G4_GLASS_LEAD Glass Lead common_dielectric 6.22
glass_plate | G4_GLASS_PLATE Glass Plate common_dielectric 2.4
gold | G4_Au Gold (Au)
Z: 79 | A: 196.96654 		metal 19.32 45.2
graphite | G4_GRAPHITE Graphite non_metal 2.21
graphite_porous | G4_GRAPHITE_POROUS Graphite Porous non_metal 1.7
gypsum | G4_GYPSUM Gypsum inorganic_salt 2.32
hafnium | G4_Hf Hafnium (Hf)
Z: 72 | A: 178.49 		metal 13.31 3.12
helium_gas | G4_He Helium (gas) (He)
Z: 2 | A: 4.002602 		gas 0.0001785
holmium | G4_Ho Holmium (Ho)
Z: 67 | A: 164.93032 		metal 8.8 1.24
hydrogen_gas | G4_H Hydrogen (gas) (H)
Z: 1 | A: 1.00794 		gas 8.99e-05
hydrogen_liquid | G4_lH2 Hydrogen (Liquid) liquid 0.0708
indium | G4_In Indium (In)
Z: 49 | A: 114.818 		metal 7.31 11.6
iodine | G4_I Iodine (I)
Z: 53 | A: 126.90447 		non_metal 4.93 8e-14
iridium | G4_Ir Iridium (Ir)
Z: 77 | A: 192.22 		metal 22.4 19.7
iron | G4_Fe Iron (Fe)
Z: 26 | A: 55.847 		metal 7.874 9.93
ito Inium Tin Oxide inorganic_salt
kapton | G4_KAPTON Kapton common_dielectric 1.42 1e-15 3.45 0 0.6 10000000.0 1e-13
krypton_gas | G4_Kr Krypton (gas) (Kr)
Z: 36 | A: 83.8 		gas 0.00375
krypton_liquid | G4_lKr Krypton (liquid) liquid 2.418
lanthanum | G4_La Lanthanum (La)
Z: 57 | A: 138.9055 		metal 6.15 1.26
lead | G4_Pb Lead (Pb)
Z: 82 | A: 207.2 		metal 11.35 4.81
lead_oxide | G4_LEAD_OXIDE Lead Oxide inorganic_salt 9.53
lead_tungstate | G4_PbWO4 Lead Tungstate inorganic_salt 8.28
lithium | G4_Li Lithium (Li)
Z: 3 | A: 6.941 		metal 0.534 10.8
lithium_amide | G4_LITHIUM_AMIDE Lithium Amide inorganic_salt 1.178
lithium_carbonate | G4_LITHIUM_CARBONATE Lithium Carbonate inorganic_salt 2.11
lithium_fluoride | G4_LITHIUM_FLUORIDE Lithium Fluoride inorganic_salt 2.635
lithium_hydride | G4_LITHIUM_HYDRIDE Lithium Hydride inorganic_salt 0.82
lithium_iodide | G4_LITHIUM_IODIDE Lithium Iodide inorganic_salt 3.494
lithium_oxide | G4_LITHIUM_OXIDE Lithium Oxide inorganic_salt 2.013
lithium_tetraborate | G4_LITHIUM_TETRABORATE Lithium Tetraborate inorganic_salt 2.44
lucite | G4_LUCITE Lucite organic_compound 1.19
lutetium | G4_Lu Lutetium (Lu)
Z: 71 | A: 174.967 		metal 9.84 1.85
magnesium | G4_Mg Magnesium (Mg)
Z: 12 | A: 24.305 		metal 1.738 22.6
magnesium_carbonate | G4_MAGNESIUM_CARBONATE Magnesium Carbonate inorganic_salt 2.958
magnesium_fluoride | G4_MAGNESIUM_FLUORIDE Magnesium Fluoride inorganic_salt 3
magnesium_oxide | G4_MAGNESIUM_OXIDE Magnesium Oxide inorganic_salt 3.58
magnesium_tetraborate | G4_MAGNESIUM_TETRABORATE Magnesium Tetraborate inorganic_salt 2.53
manganese | G4_Mn Manganese (Mn)
Z: 25 | A: 54.93805 		metal 7.43 0.695
mercuric_iodide | G4_MERCURIC_IODIDE Mercuric Iodide inorganic_salt 6.36
mercury | G4_Hg Mercury (Hg)
Z: 80 | A: 200.59 		metal 13.546 1.04
molybdenum | G4_Mo Molybdenum (Mo)
Z: 42 | A: 95.94 		metal 10.22 18.7
ms20_tissue | G4_MS20_TISSUE Ms20 Tissue tissue_proxy 1
muscle_skeletal_icrp | G4_MUSCLE_SKELETAL_ICRP Muscle Skeletal ICRP tissue_proxy 1.05
muscle_striated_icru | G4_MUSCLE_STRIATED_ICRU Muscle Striated ICRU tissue_proxy 1.04
muscle_with_sucrose | G4_MUSCLE_WITH_SUCROSE Muscle With Sucrose tissue_proxy 1.11
muscle_without_sucrose | G4_MUSCLE_WITHOUT_SUCROSE Muscle Without Sucrose tissue_proxy 1.07
mylar | G4_MYLAR Mylar common_dielectric 1.4 1e-16 3 0 0.8 10000000.0 3e-17
naphthalene | G4_NAPHTHALENE Naphthalene organic_compound 1.145
neodymium | G4_Nd Neodymium (Nd)
Z: 60 | A: 144.24 		metal 7.01 1.57
neon_gas | G4_Ne Neon (gas) (Ne)
Z: 10 | A: 20.1797 		gas 0.0009
nickel | G4_Ni Nickel (Ni)
Z: 28 | A: 58.6934 		metal 8.9 14.3
niobium | G4_Nb Niobium (Nb)
Z: 41 | A: 92.90638 		metal 8.57 6.93
nitrogen_gas | G4_N Nitrogen (gas) (N)
Z: 7 | A: 14.00674 		gas 0.0012506
nitrogen_liquid | G4_lN2 Nitrogen (Liquid) liquid 0.807
nylon-11_rilsan | G4_NYLON-11_RILSAN Nylon-11 Rilsan organic_compound 1.425
nylon-6-10 | G4_NYLON-6-10 Nylon-6-10 organic_compound 1.14
nylon-6-6 | G4_NYLON-6-6 Nylon-6-6 organic_compound 1.14
nylon-8062 | G4_NYLON-8062 Nylon-8062 organic_compound 1.08
octane | G4_OCTANE Octane organic_compound 0.7026
osmium | G4_Os Osmium (Os)
Z: 76 | A: 190.23 		metal 22.6 10.9
oxygen_gas | G4_O Oxygen (gas) (O)
Z: 8 | A: 15.9994 		gas 0.001429
oxygen_liquid | G4_lO2 Oxygen (liquid) liquid 1.141
palladium | G4_Pd Palladium (Pd)
Z: 46 | A: 106.42 		metal 12.02 9.5
paraffin | G4_PARAFFIN Paraffin organic_compound 0.93
phosphorus_white | G4_P Phosphorus (white) (P)
Z: 15 | A: 30.973762 		non_metal 1.82 1e-15
plastic_sc_vinyltoluene | G4_PLASTIC_SC_VINYLTOLUENE Plastic Sc Vinyltoluene organic_compound 1.032
platinum | G4_Pt Platinum (Pt)
Z: 78 | A: 195.08 		metal 21.45 9.66
plexiglass | G4_PLEXIGLASS Plexiglass common_dielectric 1.19 1e-15 4 1.7 1 10000000.0 2200000000000000.0
plutonium_dioxide | G4_PLUTONIUM_DIOXIDE Plutonium Dioxide inorganic_salt 11.46
polonium | G4_Po Polonium (Po)
Z: 84 | A: 208.9824 		metal 9.3 2.19
polyacrylonitrile | G4_POLYACRYLONITRILE Polyacrylonitrile organic_compound 1.17
polycarbonate | G4_POLYCARBONATE Polycarbonate organic_compound 1.2
polychlorostyrene | G4_POLYCHLOROSTYRENE Polychlorostyrene organic_compound 1.3
polyethylene | G4_POLYETHYLENE Polyethylene common_dielectric 0.94 1e-14 2.26 1 0.8 10000000.0 4.5e-14
polyoxymethylene | G4_POLYOXYMETHYLENE Polyoxymethylene organic_compound 1.425
polypropylene | G4_POLYPROPYLENE Polypropylene common_dielectric 0.9
polystyrene | G4_POLYSTYRENE Polystyrene common_dielectric 1.06
polytrifluorochloroethylene | G4_POLYTRIFLUOROCHLOROETHYLENE Polytrifluorochloroethylene organic_compound 2.1
polyvinyl_acetate | G4_POLYVINYL_ACETATE Polyvinyl Acetate organic_compound 1.19
polyvinyl_alcohol | G4_POLYVINYL_ALCOHOL Polyvinyl Alcohol organic_compound 1.3
polyvinyl_butyral | G4_POLYVINYL_BUTYRAL Polyvinyl Butyral organic_compound 1.12
polyvinyl_chloride | G4_POLYVINYL_CHLORIDE Polyvinyl Chloride organic_compound 1.3
polyvinyl_pyrrolidone | G4_POLYVINYL_PYRROLIDONE Polyvinyl Pyrrolidone organic_compound 1.25
polyvinylidene_chloride | G4_POLYVINYLIDENE_CHLORIDE Polyvinylidene Chloride organic_compound 1.7
polyvinylidene_fluoride | G4_POLYVINYLIDENE_FLUORIDE Polyvinylidene Fluoride organic_compound 1.76
potassium | G4_K Potassium (K)
Z: 19 | A: 39.0983 		metal 0.862 13.9
potassium_iodide | G4_POTASSIUM_IODIDE Potassium Iodide inorganic_salt 3.13
potassium_oxide | G4_POTASSIUM_OXIDE Potassium Oxide inorganic_salt 2.32
praseodymium | G4_Pr Praseodymium (Pr)
Z: 59 | A: 140.90765 		metal 6.77 1.48
promethium | G4_Pm Promethium (Pm)
Z: 61 | A: 144.9127 		metal 7.3
protactinium | G4_Pa Protactinium (Pa)
Z: 91 | A: 231.03588 		metal 15.4 5.29
psg_120_fd PSG FD 120 organic_compound
pyrex_glass | G4_Pyrex_Glass Pyrex Glass common_dielectric 2.23
radium | G4_Ra Radium (Ra)
Z: 88 | A: 226.0254 		metal 5.5
radon_gas | G4_Rn Radon (gas) (Rn)
Z: 86 | A: 222.0176 		gas 0.00973
rhenium | G4_Re Rhenium (Re)
Z: 75 | A: 186.207 		metal 21.04 5.42
rhodium | G4_Rh Rhodium (Rh)
Z: 45 | A: 102.9055 		metal 12.41 21.1
rubber_butyl | G4_RUBBER_BUTYL Rubber Butyl organic_compound 0.92
rubber_natural | G4_RUBBER_NATURAL Rubber Natural organic_compound 0.92
rubber_neoprene | G4_RUBBER_NEOPRENE Rubber Neoprene organic_compound 1.23
rubidium | G4_Rb Rubidium (Rb)
Z: 37 | A: 85.4678 		metal 1.63 7.79
ruthenium | G4_Ru Ruthenium (Ru)
Z: 44 | A: 101.07 		metal 12.37 13.7
samarium | G4_Sm Samarium (Sm)
Z: 62 | A: 150.36 		metal 7.52 0.956
scandium | G4_Sc Scandium (Sc)
Z: 21 | A: 44.95591 		metal 2.99 1.77
selenium | G4_Se Selenium (Se)
Z: 34 | A: 78.96 		semi_conductor 4.79 1e-10
silicon | G4_Si Silicon (Si)
Z: 14 | A: 28.0855 		semi_conductor 2.33 2.52e-10
silicon_dioxide | G4_SILICON_DIOXIDE Silicon Dioxide inorganic_salt 2.32
silver | G4_Ag Silver (Ag)
Z: 47 | A: 107.8682 		metal 10.5 63
silver_bromide | G4_SILVER_BROMIDE Silver Bromide inorganic_salt 6.473
silver_chloride | G4_SILVER_CHLORIDE Silver Chloride inorganic_salt 5.56
silver_halides | G4_SILVER_HALIDES Silver Halides inorganic_salt 6.47
silver_iodide | G4_SILVER_IODIDE Silver Iodide inorganic_salt 6.01
skin_icrp | G4_SKIN_ICRP Skin ICRP tissue_proxy 1.09
sodium | G4_Na Sodium (Na)
Z: 11 | A: 22.989768 		metal 0.971 21
sodium_carbonate | G4_SODIUM_CARBONATE Sodium Carbonate inorganic_salt 2.532
sodium_iodide | G4_SODIUM_IODIDE Sodium Iodide inorganic_salt 3.667
sodium_monoxide | G4_SODIUM_MONOXIDE Sodium Monoxide inorganic_salt 2.27
sodium_nitrate | G4_SODIUM_NITRATE Sodium Nitrate inorganic_salt 2.261
stainless_steel | G4_STAINLESS-STEEL Stainless Steel alloy 8
strontium | G4_Sr Strontium (Sr)
Z: 38 | A: 87.62 		metal 2.54 7.62
sucrose | G4_SUCROSE Sucrose organic_compound 1.5805
sulfur | G4_S Sulfur (S)
Z: 16 | A: 32.066 		non_metal 2.07 5e-22
tantalum | G4_Ta Tantalum (Ta)
Z: 73 | A: 180.9479 		metal 16.65 7.61
technetium | G4_Tc Technetium (Tc)
Z: 43 | A: 97.9072 		metal 11.5 6.7
teflon | G4_TEFLON Teflon common_dielectric 2.2 1e-16 2.15 0 0.7 10000000.0 2e-14
tellurium | G4_Te Tellurium (Te)
Z: 52 | A: 127.6 		metal 6.24 0.0002
terbium | G4_Tb Terbium (Tb)
Z: 65 | A: 158.92534 		metal 8.23 0.889
terphenyl | G4_TERPHENYL Terphenyl organic_compound 1.234
testis_icrp | G4_TESTIS_ICRP Testis ICRP tissue_proxy 1.04
tetrachloroethylene | G4_TETRACHLOROETHYLENE Tetrachloroethylene organic_compound 1.625
thallium | G4_Tl Thallium (Tl)
Z: 81 | A: 204.3833 		metal 11.85 6.17
thallium_chloride | G4_THALLIUM_CHLORIDE Thallium Chloride inorganic_salt 7.004
thorium | G4_Th Thorium (Th)
Z: 90 | A: 232.0381 		metal 11.724 6.53
thulium | G4_Tm Thulium (Tm)
Z: 69 | A: 168.93421 		metal 9.32 1.5
tin | G4_Sn Tin (Sn)
Z: 50 | A: 118.71 		metal 7.31 9.17
tissue_soft_icrp | G4_TISSUE_SOFT_ICRP Tissue Soft ICRP tissue_proxy 1.03
tissue_soft_icru-4 | G4_TISSUE_SOFT_ICRU-4 Tissue Soft ICRU-4 tissue_proxy 1
titanium | G4_Ti Titanium (Ti)
Z: 22 | A: 47.88 		metal 4.54 2.34
titanium_dioxide | G4_TITANIUM_DIOXIDE Titanium Dioxide inorganic_salt 4.26
trichloroethylene | G4_TRICHLOROETHYLENE Trichloroethylene organic_compound 1.46
triethyl_phosphate | G4_TRIETHYL_PHOSPHATE Triethyl Phosphate organic_compound 1.07
tungsten | G4_W Tungsten (W)
Z: 74 | A: 183.84 		metal 19.35 18.9
uranium | G4_U Uranium (U)
Z: 92 | A: 238.0289 		metal 18.95 3.8
uranium_dicarbide | G4_URANIUM_DICARBIDE Uranium Dicarbide inorganic_salt 11.28
uranium_monocarbide | G4_URANIUM_MONOCARBIDE Uranium Monocarbide inorganic_salt 13.63
uranium_oxide | G4_URANIUM_OXIDE Uranium Oxide inorganic_salt 10.96
valine | G4_VALINE Valine organic_compound 1.23
vanadium | G4_V Vanadium (V)
Z: 23 | A: 50.9415 		metal 6.11 4.89
viton | G4_VITON Viton organic_compound 1.8
water_liquid | G4_WATER Water (Liquid) inorganic_salt 1
water_vapour | G4_WATER_VAPOR Water (Vapor) inorganic_salt 0.000756182
xenon_gas | G4_Xe Xenon (gas) (Xe)
Z: 54 | A: 131.29 		gas 0.0059
xenon_liquid | G4_lXe Xenon (liquid) liquid 2.953
xylene | G4_XYLENE Xylene organic_compound 0.87
ytterbium | G4_Yb Ytterbium (Yb)
Z: 70 | A: 173.04 		metal 6.9 3.51
yttrium | G4_Y Yttrium (Y)
Z: 39 | A: 88.90585 		metal 4.47 1.66
zinc | G4_Zn Zinc (Zn)
Z: 30 | A: 65.39 		metal 7.13 16.6
zirconium | G4_Zr Zirconium (Zr)
Z: 40 | A: 91.224 		metal 6.51 2.36