The weight of a cubic inch of leather typically ranges from about 0.03 to 0.07 pounds, depending on the type of leather and its thickness. Generally, vegetable-tanned leather is denser than chrome-tanned leather, which can affect weight. For precise measurements, it's best to refer to specific leather types and their respective densities.
Tungsten weighs about 0.7 lb per cubic inch.
A cubic inch of marble typically weighs around 0.31 pounds.
A cubic inch of 4130 steel weighs approximately 0.283 pounds.
Gray cast iron is around 118 grams per cubic inch.
1 cubic inch of water weighs 16.4 (16.3961) grams.
The square inch is a unit of area. The cubic inch is a unit of volume; a cubic inch of uranium has a mass of approx. 312,2 grams.
One cubic inch of lead weighs around 0.41 to 0.44 ounces.
Of course, different brasses and forms can vary, but at a specific gravity of about 8.5, a cubic inch of brass would weigh about 5 ounces (or just under a third of a pound).
The most dense cubic inch would depend on the material it is made of. For example, a cubic inch of lead is denser and heavier than a cubic inch of aluminum. Generally, the density of a material can be calculated by dividing its mass by its volume.
The density of limestone varies from something on the order of 110 pounds per cubic foot (a shade over 1 ounce per cubic inch) to over 160 pounds per cubic foot (about 1.5 ounces per cubic inch).
The density of lead is 11.34g per cubic centimetre. As there are 16.387 cubic centimetres in one cubic inch, one cubic inch of lead weighs 11.34 X 16.387 or 185.83grams. In ounces this is 6.55 (or just over 6 and a half) ounces.
Density of uranium: 19,1 g/cm3 1 cubic inch = 16,38706 cm3 The mass of 1 cubic inch of uranium is 313 g.