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Crystals, Glass, Ceramics, & Minerals
Longitudinal Velocity
Shear
Velocity
Density
g/cm3
Acoustic Impedance g/cm2-sec
x105
cm/ms
in/ms
Alumina
.981
.3862
N/A
2.60
25.5
Brick
.365
.1437
.256
.101
3.60
15.3
Clay Rock
.348
.137
.342
.135
2.50
14.2
Concrete
2.30
6.9-10.4
Flint
.426
.1677
.269
.117
18.9
Glass Crown (reg.)
.566
.2228
.352
.139
14.5
Glass Crown (heaviest)
.526
.2071
.326
.128
Glass Quartz
.557
.2193
.343
Glass Window
.679
.2673
Glass, Plate
.571
.2248
2.75
10.7
Glass, Pyrex
.556
.2189
.198
.0780
Granite
.390
.1535
Ice
.399
.1571
.9
16.4
Ivory
.301
.1185
2.17
1.4
Marble
.615
.2421
1.54
9.5
Rock Salt (X dir)
.478
.1882
Rochelle Salt
.536
.211
.376
.148
2.20
13.1
Sapphire
.980
.3858
Silica (fused)
.596
.2346
Slate
.450
.1772
Sulfur (115° C)
.0531