块状铜矿石

Product Types: 1. Rock Salt 2. Marble Onyx Handicrafts 3. Minerals, etc. Good Quality 5% - 10% Copper Ore in Lumps:  Size: 3-300mm We can supply good quality Copper Ore Lumps in bulk quantities. We do our own mining. MINERALS: A mineral is a naturally occurring solid formed through geological processes that has a characteristic chemical composition, a highly ordered atomic structure, and specific physical properties. A rock, by comparison, is an aggregate of minerals and/or mineraloids, and need not have a specific chemical composition. Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms. The study of minerals is called mineralogy. To be classified as a true mineral, a substance must be a solid and have a crystalline structure. A mineral is (generally) an inorganic, naturally occurring, organized crystalline structure composed of a single chemical compound or element. Mineral crystals form because their component chemicals tend to aggregate together in certain specific arrangements dictated by the shapes and components of the molecules involved (and sometimes varying with temperature and pressure). These arrangements result in the crystal forms described in the physical characteristics. Often, minerals are formed as a solution changes in some way which allows or forces the component mineral(s) to solidify. This change may be temperature, pressure, chemistry, or concentration, and the solution may be aqueous or a magma or even a gas. PHYSICAL PROPERTIES: Classifying minerals can range from simple to very difficult. A mineral can be identified by several physical properties, some of them being sufficient for full identification without equivocation. In other cases, minerals can only be classified by more complex chemical or X-ray diffraction analysis; these methods, however, can be costly and time-consuming. Physical properties commonly used are: Crystal structure and habit Hardness Luster Color Streak Fracture Cleavage Specific Gravity Please feel free to send us an email for a better quote.