Specific heat at 25° C 

The heat capacity of a substance measures the ability of a substance to retain heat. The heat capacity is that quantity of heat required to raise a substance one degree in temperature. The specific heat is the heat capacity per gram of substance. Traditionally, liquid water was used as the standard - with a specific heat of 1 calorie / gram* °C (4.184 Joules / gram* °C).   

The more loosely the components of a solid is held, the higher is the substance's specific heat.

The specific heat of a number of materials is given in the table below:
 

Material	Specific Heat (Joules / gram*° C)
Gold metal	0.129
Iridium metal	0.131
Silver metal	0.2340
Copper metal	0.383
Brass alloy	0.385
Carbon Steel	0.486
Diamond	0.509
Graphite	0.71
Alumina (Ruby, Sapphire)	0.76
Red brick	0.84
Aluminum metal	0.896
Sodium metal	1.228
Cork	1.88
Ice	1.93
Water	4.184