Elements, but mostly combinations of elements.
== == The most valuable rocks would be those partly comprised of the most valuable minerals such as gold, silver, and precious gemstones.
Carbonate minerals that are comprised of crustal rock.
Element
Rocks are composed of minerals.
== Shale is a sedimentary rock, comprised of lithified mud and clay minerals.
Salt is composed of the chemicals Chlorine and Sodium. (NaCl) salt is a mineral, it is not comprised of minerals, it is comprised of chemicals.
An amphibolite is a class of metamorphic rock comprised mainly of amphibole with some quartz and other minerals.
The number on Armani is at the back of the watch and it comprised of the two letter AR and 4 digit number
It is comprised of minerals--- naturally occurring inorganic solids with a set chemical formula and a crystalline structure.
Slim Quick, a dietary supplement comprised of vitamins, minerals, and herbs, is not approved by the FDA.
Many minerals silicate due to the process that go through in their formation. It is estimated that 30% percent of all minerals are silicate and are made up of components from the crust of the earth.
Wires are generally not comprised of minerals, but metals. Examples are copper, aluminum, and gold. There are some insulation systems that use "rock wool" (which is mineral based), for high temperature or high radiation exposure.