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 formed from minerals or mineroids solidified into one. A rock could be made up of either one or more than one minerals combined together. For example, the most common rock granite is a combination of quartz, feldspar and biotite minerals.The Earthâs crust is also known as a rock. Rocks are classified based upon various characteristics such as mineral and chemical composition, texture and permeability.ocks 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.