292 TABLE 282.— DENSITY IN g/cm 3 AND lb/ft 3 OF VARIOUS SOLIDS 



Note. — The density of a specimen depends considerably on its state and previous treat- 

 ment ; especially is this the case with porous materials. 



Material g/cm 3 lb/ ft 3 



Agate 2.5 -2.7 156-168 



Alabaster : 



Carbonate 2.69-2.78 168-173 



Sulphate 2.26-2.32 141-145 



Albite 2.62-2.65 163-165 



Amber 1.06-1.11 66- 69 



Amphiboles 2.9 -3.2 180-200 



Anorthite 2.74-2.76 171-172 



Anthracite 1.4-1.8 87-112 



Asbestos 2.0 -2.8 125-175 



Asphalt 1.1 -1.5 69- 94 



Basalt 2.4 -3.1 150-190 



Beeswax 96- .97 60- 61 



Beryl 2.69-2.7 168-168 



Biotite 2.7 -3.1 170-190 



Bone 1.7 -2.0 106-125 



Brick 1.4 -2.2 87-137 



Butter 86- .87 53- 54 



Calamine 4.1 -4.5 255-280 



Camphor 99 62 



Caoutchouc 92- .99 57- 62 



Celluloid 1.4 87 



Cement, set 2.7 -3.0 170-190 



Chalk 1.9 -2.8 118-175 



Charcoal, oak 57 35 



pine 28- .44 18- 28 



Chrome yellow . . . 6.00 374 



Chromite 4.32-4.57 270-285 



Cinnabar 8.12 507 



Clay 1.8 -2.6 122-162 



Coal, soft 1.2 -1.5 75- 94 



Cocoa butter 89- .91 56- 57 



Coke 1.0 -1.7 62-105 



Copal 1.04-1.14 65- 71 



Cork 22- .26 14- 16 



Cork linoleum 55 34 



Corundum 3.9 -4.0 245-250 



Diamond : 



Anthracitic 1.66 104 



Carbonado 3.01-3.25 188-203 



Diorite 2.52 157 



Dolomite 2.84 177 



Ebonite 1.15 72 



Emery 4.0 250 



Epidote 3.25-3.5 203-218 



Feldspar 2.55-2.75 159-172 



Flint 2.63 164 



Fluorite 3.18 198 



Gamboge 1.2 75 



Garnet 3.15^.3 197-268 



Gas carbon 1.88 117 



Gelatine 1.27 180 



Glass, common .... 2.4 -2.8 150-175 



" flint 2.9 -5.9 180-370 



Glue 1.27 80 



Granite 2.64-2.76 165-172 



Graphite 2.30-2.72 144-170 



Material g/cm 3 lb/ft 3 



Gum arabic 1.3 -1.4 80- 85 



Gypsum 2.31-2.33 144-145 



Hematite 4.9 -5.3 306-330 



Hornblende 3.0 187 



Ice 917 57.2 



Ilmenite 4.5 -5. 280-310 



Ivory 1.83-1.92 114-120 



Labradorite 2.7-2.72 168-170 



Lava, basaltic 2.8-3.0 175-185 



" trachytic .... 2.0 -2.7 125-168 



Leather, dry 86 54 



greased ..1.02 64 



Lime, mortar 1.65-1.78 103-111 



" slaked 1.3 -1.4 81- 87 



Limestone 2.68-2.76 167-171 



Litharge : 



Artificial 9.3 -9.4 580-585 



Natural 7.8 -8.0 490-500 



Magnetite 4.9 -5.2 306-324 



Malachite 3.7 -4.1 231-256 



Marble 2.6 -2.84 160-177 



Meerschaum 99-1.28 62-80 



Mica 2.6 -3.2 165-200 



Muscovite 2.76-3.00 172-225 



Ochre 3.5 218 



Oligoclase 2.65-2.67 165-167 



Olivine 3.27-3.37 204-210 



Opal 2.2 137 



Orthoclase 2.58-2.61 161-163 



Paper 7 -1.15 44- 72 



Paraffin 87- .91 54- 57 



Peat 84 52 



Pitch 1.07 67 



Porcelain 2.3-2.5 143-156 



Porphyry 2.6 -2.9 162-181 



Pyrite 4.95-5.1 309-318 



Ouartz 2.65 165 



Quartzite 2.73 170 



Resin 1.07 67 



Rock salt 2.18 136 



Rubber, hard 1.19 74 



soft 1.1 69 



Rutile 4.2 260 



Sandstone 2.14-2.36 134-147 



Serpentine 2.50-2.65 156-165 



Slag, furnace 2.0 -3.9 125-240 



Slate 2.6 -3.3 162-205 



Soapstone 2.6-2.8 162-175 



Starch 1.53 95 



Sugar 1.61 100 



Talc 2.7 -2.8 168-174 



Tallow 91- .97 57- 60 



Tar 1.02 66 



Topaz 3.5 -3.6 219-223 



Tourmaline 3.0 -3.2 190-200 



Wax, sealing 1.8 112 



Zircon 4.68-4.70 292-293 



SMITHSONIAN PHYSICAL TABLES 



