Crystal Structure:
   hcp: hexagonal close-packed
   bcc: body-centered cubic
   fcc: face-centered cubic

Specific Heat: the ratio of heat capacity of a substance to the heat
capacity of water. Another way of looking at it is the quantity of heat
required to raise the temperature of one gram of a substance by one
degree centigrade or one degree Kelvin (1 J/gC = 1 J/gK).

Melting Point (freezing point): the point at which the crystals of a pure
substance are in equilibrium with the liquid phase at atmospheric pressure.
This point is commonly referred to as melting point when a substance is
approaching it from its solid state and is referred to as freezing point when
a substance is approaching it from its liquid state.

Coefficient of lineal thermal expansion: The ratio of change in length per
degree centigrade compared to the base length at zero degrees centigrade.
The unit of measurement is centimeter per centimeter per degree centigrade
(cm/cm/°C). This measurement means that for every centimeter of base
length, the length will change X centimeters for every change of one degree
centigrade.

Conduction: (1) thermal conduction the transfer of heat between two solid
materials that are physically touching each other. (2) electrical conduction
the transfer of electrical current through a solid or liquid.

Thermal Conductivity: see Conduction

Density: the mass per unit volume of a substance.