central heating - a heating system in which air or water is heated at a central furnace and sent through the building via vents or pipes and radiators
exists and is an alternate of . Five physical characteristics of a mineral are: hardness, luster, diaphaneity, colour, and streak.
Rocks are made up of one or more minerals or mineraloids. Have a definite chemical composition; minerals are inorganic compounds. Characteristics. Rocks are characterized by mineral and chemical composition, texture and permeability.