Typical values of thermal conductivity
Table
Typical values of thermal conductivity
(in 0.001 calories per centimetre per second per degree Celsius)
material at 20 °C at 200 °C
typical rocks 4–10
granite 7.8 6.6
gneiss
(perpendicular to banding) 5.9 5.5 (100 °C)
(parallel to banding) 8.2 7.4 (100 °C)
gabbro 5.1 5.0
basalt 4.0 4.0
dunite 12.0 8.1
marble 7.3 5.2
quartzite 15.0 9.0
limestone 6.0
one sandstone
(dry) 4.4
(saturated) 5.4
shale 3–4
rock salt 12.8
sand
(dry) 0.65
(30% water) 3.94
water 1.34 (0 °C) 1.6 (80 °C)
ice 5.3 (0 °C) 9.6 (−130 °C)
magnetite 12.6
quartz 20.0
feldspars 5.0
See as table:
- West Virginia University
- westward movement
- West Wiltshire
- West Wyalong
- West Yorkshire
- Wetar Island
- Wet, Christiaan Rudolf de
- wet collodion process
- wet gas
- Wethered, Joyce
- Wethersfield
- wetland
- Wetmore, Alexander
- Wettin Dynasty
- wetting agent
- Wettstein, Johann Rudolf
- Wetzstein, Johann Gottfried
- W. Eugene Smith
- Wewak
- Wewoka
- Wexford
- Weyden, Rogier van der
- Weyerhaeuser, Frederick
- Weygand, Maxime
- Weyler y Nicolau, Valeriano, Marqués De Tenerife