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.
A mineral must: 1. be created naturally 2. be solid 3. have a crystalline structure 4. be homogeneous 5. have a definite chemical composition. 5 Characteristics Of A Mineral. Five Characteristics Of A Mineral. This Site Might Help You.